I can definitely confirm a C-O-M can drop from a Treasure Hunting box - that's how I got mine a while ago, couple of years ago.

I'm pretty sure they do. I don't have any experience with the PVP set pieces, but the old PVE pieces (216, 220, 224) mix with 230 without any problems.

http://www.swtor.com/user/ce/1c5sdu

The price of the initial unlock is 2100 cartel coins, or 1 million credits if you have legacy level 40. After that, you can either pay 300k credits to unlock it on EACH character, or a one time fee of 700 cartel coins to unlock it in collections for all characters.

There is an indirect way to do that - create a new character on your original server and transfer it to the new server. It will cost you 1800CC and will copy your legacy to the new server, with all class buffs, unlocks, achievements and so on.

For the question in the OP, 30k is about right for a player in full 66 gear with full purple 28 augments, and with some kind of decent relics. Also, be aware there is a bug sometimes when inspecting a player, earpieces and implants may show as green when in fact are blue or purple - the stats are still correct, just the color is wrong. For the later question, Oriconian armor is the name of the grade 78 armor sold for ultimate commendations.

I'll try to answer at least a few of these questions: 1. The speeder is an ability that you can put on one of your quickbars - you use it once to mount, you can use it again to dismount. 2. They will only go through a path that you could walk. You cannot mount everywhere - speeders work generally in the outside, open world, and in some inside places, like bases and outposts. You won't be able to mount up in most inside places and instances. 3. No, no speed control. There are three speed levels, that you get by getting the corresponding training. Once you train speeder piloting I, the speeder goes 90% faster than walking. At speeder piloting II, it goes to 100%, then 110% at III. Speeder that you buy from the speeder vendor on fleet and other places have a fixed speed, while adaptive speeders, like the Lucky Swoop 77, always work at the maximum speed you have training for. 4. You can use them on missions, as long as you are in an area you can use a speeder in. You can try to zip by mobs, and it sometimes works. Since you are faster, you have a better chance to outrun the mobs. Higher levels of speeder piloting also give you increased protection against being knocked off your speeder. Still, it might still happen you are knocked down and have to fight. 5. You need to train the various levels of speeder piloting. Adaptive speeders do not require any upgrades, while the fixed speed ones would need to be replaced. The speeders they give out for promotions are normally adaptive, so I expect the Lucky Swoop will be too. 6. Yes. While you are mounted, the companion disappears, but they are summoned back when you dismount 7. Yes, I would expect so. With past promotions, all your current characters would receive the speeder, and when you make a new one they will receive a mail with it. 8. Yes 9. Nothing I can think of

I don't recall this particular quest, but you can tell from the message you get when you abandon it if you will be able to get it again. When you abandon the quest, if it asks 'Are you sure you want to abandon it', it means you can get it again. If it says 'Are you sure you want to abandon it, you may not be able to get it again', you won't get it again.

There are 5 daily missions, not including heroic or ops, that give a green rep item. You need 7500 rep to reach newcomer. Assuming you are a subscriber and not in a guild, each green rep item gives 270 rep. You then need to complete 28 dailies to reach newcomer - so you can reach it in 3 days if you do all dailies on two characters every day.

Credits are also easy to make with dailies. Running Section X once on a character takes about an hour and gets you about 150-200k. Running all Makeb dailies and the weekly takes a bit longer, 2-3 hours, and would get you about 500k. You might be able to run these faster too, I don't rush to much

Treek uses Aim as her main stat

The issue I had, and which sounds like what the OP had too, is that at some point the key seemed to be out of sync with the servers - the number that it was generating was always considered incorrect when logging in. Time sync was not fixing it. At the time, I called support and they told me the solution is to just remove it from the account.

Had the same issue with the Android version back in February. I reactivated my security key again in May, and had no issue since then. Now is easier, though, if it happens the key gets out of sync again, you can disable it by yourself - say you lost your security key when you login to the website and they send you an one-time password to confirm. There is no need to call anymore.