Easy to print E-100 , 1/100 scale, will want some greebling if scaled up. Some details have been changed for looks/ printability. These are based on the E-100 paper(alt history/ never made/ fiction?) panzer. Due to the shape of the skirts they want to be printed as part of the tread assembly, just pick whichever whole file you want.
Scale by 1.56 for gaslands / hotwheels / 1/64
Scale by 1.786 for 28mm / 1/56.