Even as a healer, I do all the dailies (skip the group ones cause who wants to wait for groups) and get em done in just over 1 hour. I think I make about 150k or so (200 if I get lucky drops to sell).
If you can't play 1 hour a day on off nights...why are you even paying Bioware 15 bucks a month. You aren't getting your money's worth.
We are currently working on NM mode SOA and while 1 rack up a 100k repair bill a night or 2, that's easily made up during the off days. Even counting stim replacement costs and medpacks, If I end up with lets say a 200k repair bill per night (pushing it) and I ran the dailies every day I could still net about 900k a week profit.
I don't have millions of credets only because I just don't log in anymore unless I get under 1 mil to do dailies...but really. Not hard or time consuming.
Don't give up on raiding, just do a lil work and you'll have your repairs covered. This game is VERY casual friendly.