You can try this fellow:
You might have an uphill battle trying to hire a mercenary under your previous terms, though. The request, by its very nature, demonstrates the dubiousness of trusting you and you want the mercenary to work for you in exchange for your word that there is a lot of isk to be made. Mercs generally want to be paid up front unless they know you’re word is good.
Now, all’s fair in love and war and all that, so I don’t particularly care what you do or how good your word is. I’m just trying to describe why you might have difficulty convincing a merc to take the job. Rule of acquisition #59 still stands and people are going to have their doubts.