My recommendation would be to choose rogue.
The craftsman skills would be the same no matter what, but the discounted costs for Waylay and Alchemy would come in handy.
I would be more interested in being able to spend some build on some backstabs for a dodge and some evades to help get out of the sticky situations than choosing fighter for the body.
2 stabs, 2 evades, Waylay, Archery (or OHE), Alchemy 10, then Craftsman skills onward to infinity.
Alchemy 10 and a lab would let you casually make alchemy that you could sell when needed or use to defend yourself from thieves. You could make a KILLING being that one guy with a stack of 20 Enslavement antidotes that you've been building up for a few years become necassary.
Limiting yourself to 10 would also make it more of a hobby than a true profession and would let you get down to the business of banking.
Of course, the combat skills and the alchemy are entirely optional. You could skip one, the other, or both (although I would probably pick up Waylay no matter what).
Stephen