So I've taken the original list that was posted on the tread. I removed the missions I didn't like/felt took to long and added replacements. (please compare the two lists.)
Comrades in Arms
Toxic Bombs
Spring Thaw
Saving Face
Personal Challenge
Pirated lockbox
Black Box
Prison Labor
I soloed those 8 missions in 29:09.09 or 29mins and 10secs. I could have done it much faster but I forgot that my Toon had no modification on anything. (I'll post my stats in just a sec) I didn't do any of the bonuses, and I only fought/gathered when I absolutely had to. I made 170,202 credits got 1 alien research box, 1 ancient artifacts box, 2 Military equipment boxes, and 4 smuggled good boxes. If you decide to complete the bonuses, gather all the drops, and open/sell the stuff in the crates you can easily double the credits you receive. I like to run those mission with multiple toons.