new model A owner, modification questions

[bdave_mcc]

Hi guys, Im new to the forum and just picked up my first model A. I was looking for a coupe traditional style hot rod, but i found this roadster and had to have it. I want to keep for a while i think, but i dont want to do anything to hurt value in case i need to sell. Ive considered looking into some of the engine mods for drivability and durability, ive seen the insert bearings, high compressions head...mods such as that as well as brake upgrades. Do any of these mods hurt the value of an original style car? Ive been wanting a model a for a long time and finally got my hands on one. I dont want to mess it up. I do plan on doing a full cosmetic restoration on it if i keep it. but if i hold on to it i want something that can be driven a good bit. Any opinions welcomed.