As Jee said, I got the files on Cults 3D. I originally used ASA because it was more temperature resistant as I live in Texas and I had my SU-152 warp in the sun. For some reason I could get ASA to print much better than PETG on my Qidi iMates printer. The other reason was the ability to glue ASA using acetone. I have since bought a Bambu Labs X1 Carbon and it prints PETG really well. Additionally I found out I could use MEK to glue PETG so now the Hellcat, BMP-1, and IS-4 have all been printed in PETG or PETG-G. Not a typo. Sunlu has some PETG-G that seems to work really well in my printer and it's only like $16 per kilo. I'm hoping I'm not making a mistake printing in PETG. I've been printing the tracks in PLA+, but from what I've been seeing the + doesn't make it any more temperature resistant. I guess if I have any issues with the tracks in the heat I can just reprint them in another material. Once I get my resin printer running I might try the tracks in resin as a guy who makes RC airplane parts has had really good results with 50/50 Siraya Tech Build/Tenacious for strength and heat resistance.
Derek