Don't take less than 10 mil, hehe.
No seriously, I've been offered 10 mil- just gotta wait till the richy riches log on.
Be careful though, they could end up not paying you, and since it isn't really anywhere in SWTOR'S "Code of Conduct" they most likely won't suffer any punishment. Make sure you really feel comfortable and that you can trust the person. May the force be with you!