Got the helm I want so nvm on willing to buy

^thats the one im trying to get, I have that other one

Im on the shadow lands US server please send it via mail with COD or whisper me and talk out a price atm I only have 115k but plan on getting some cartel packs and sell em with my next monthly grant of CCoins and will probly be able to shell out 300k for it (my next grant is in 5 or 6 days then 1 and a half for the packs to unbind) My Name is Gerdoth

1st off im rather new to mmo's, and atm my highest lvl toon is 25 (or is he 26?) But I want to know what should you do at endgame please explain what I should/need to do to get good gear sets for both PvE and PvP, any help/advise would be greatly appreciated thanks! Oh before I forget my class is a sith Marauder and I also have an operative as an alt