In regards to Frankenprey - small critters are an excellent place to start (as opposed to diving into the world of chicken necks and wings.)
If you're willing to do this (and I can understand how hard it can be), you might consider looking into buying some day-old chicks, day-old quail, or pinky mice. You can sometimes get pinky mice from reptile stores or pet stores, though I've always bought mine online. They are adorable, and I feel like a heartless scumbag whenever I take one out of the freezer. >_>;
Now, because it'll be hard to get kitties to try the prey "whole", you might try chopping them into little bits (or in half, in the case of the pinky mice). This is best done when they're still frozen. Because they're so small, they chop easily, but will start to thaw out quickly, so you have to be fast.
I have to actually "skin" the quail and chick bits for my cat so far, as she won't touch them if there's any fuzz/fluff.
She loves the pinky mice, as long as I dice them.
I haven't had any luck getting her to actually chow down on chicken necks or wings, though.