Hmmmmmm......... I don't have one, but am wondering what you are planning to need a trial fit
Since both of mine are 88s, I'm just thinking that it would be cool to be able to build something on a cradle, and then slip an engine compartment over the assembly, and see what fits and what doesn't. Will be lots easier than fitting a cradle into a complete car, and then removing it again. That way, I'll be able to keep my cars running until I'm actually ready to do a swap.
It'll also work to mock up wiring harnesses, and such. (Not like I'm thinking about going into the harness business, or anything, but I
am looking to do a 7730 in my 4.9 car. I have some ideas in my head. But if it all actually works, I might consider doing something... useful?)