Switching from Scrambler to Mod-Mini

What’s the differences in bodies of a mod-mini and a 4-cylinder class such as scramblers, bombers, gladiators, box stock, etc.

4 cyl bombers use stock bodies. Mod-Mini uses store bought or fabricated bodies. The biggest difference is cost. Bombers cost $500 to $1500 and Mod-minis cost $3000 to $6000 just for a good used one.