Contact ed clark, joey capony, rick denman or clarks geckos, my guess is none of them would care if they were breeding jen's snakes.
You should have no problem getting any of them to "help" you out.
Of course, you then get to wear the I'm a Scumbag Too jacket, but it's a small price to pay. Right?
One guy turned you down because he doesn't want to take a chance. Don't get your knickers knotted over it.
Be patient, look around for other breeders or just wait until you can afford the male you want and then breed them yourself.
Honestly I don't know if I'd take a snake on loan from someone who had been at Jen's. I only have half a dozen ball pythons and I'm leary. None of mine have any real value. Someone who's life is in their breeding projects may well, as has been shown, feel quite strongly, and rightly so, about not working with you.
Your honesty is fantastic and don't feel bad about it. At least your word is taken as truth. Better honest than scum.