I've got that Jagdpanther and the Tamiya 1/25 Tiger as well. Someone once told me about some inacurracies about the Jagdpanther, but not being an expert, I never bothered to correct them. I built mine in the motorized mode about 15 years ago and recently someone sent me the guts to convert it to the wired remote control. I plan on rebuilding that kit for my son to play with.
1/32 scale kits were the standard about 30 years ago. Companies like Airfix, Renwal and Monogram made many 1/32 scale tanks mainly WW2 kits and some "modern" (for the time) tanks. All three companies reissued many of these kits in recent years.
Some Airfix 1/32 kits: Rommel's Grief, Monty's Humber, M3 Lee and M3 Grant
Monogram: M4 Hedgehog, M4A1 Calliope, M3 Lee, M3 Grant, StuG IV, Pz IV, Brummbar, some German 8-wheeled armored car, Mobelwagon
Renwal: M41, M42, M47, M50, M51, Hawk Missile, bunch more "Atomic Age" US vehicles.
Airfix's Grant and Lee are still the best renditions of the M3 that were made.