I've just finished tweaking this Leman Russ proxy, inspired by the very original model released for Epic back in the 80s. It's designed to be easy to print in FDM (no supports required for printing), the one pictured was printed on a stock Ender 3.
I'm fairly happy with how this one turned out, I've a little bit of tidying up to do, but hope to have the model up on Cults3D next week.
Can you find anyone who provides samples?
I have used this website (UK based so no help to you I'm afraid) in the past and they provide small quantities of filament for you try https://3dfilaprint.com/filament-samples/
Might be worth having a look around to see if there is anyone stateside who does a similar service.