i was thinking of buying a civic with a ls motor and no a/c. So is it hard to install it or even possible and about how much do you think it would cost.

u can use stock civic AC if you have the P54 del sol vtec AC bracket

I just saw the car and they were showing me this bracket that came with the engine, they were saying all we would have to do is just bolt up the compressor and attach the belt to the existing pulley. Than hook up the hose thats already connected to everything else. Than just get it recharged. Do you think it would be that easy?

yes

yes its easy but most likely that bracket in there is not the one that you can use for a/c

if you have enough $$ you can make anything fit.

the bracket is only 100$ from hondaautomotiveparts.com