[N2TRUX]

Cody the first thing we need to know is do you plan to keep the 3/4 ton suspension? You can lower a C20 but its not the same as a C10. Regarding wheel size it really has no impact on how much sidewall you will have.

I do understand what a blow through system is, but that's an antiquated concept that is not really necessary unless you planning on building a massive competition system. The amount of bass available from contemporary low profile subs and amps will rattle your eyeballs. I have no idea what your asking about the camper top.

The picture you posted shows a truck with whats referred to as a "shaved" tailagate. The recess has been covered with sheet metal welded on. The handles can be relocated inside the bed with a kit.