1st off, The parts can come off of most integras, and some del sols. The parts are easily found in the junkyard. depending on your application, different e-brake caables may be needed. It's not a hard swap, but if you have no tools, it can be a bit hard.
Rear brakes only account for 25-30% or less of your stopping power, the fronts do most of the work. Upgrading the brake booster and master cylinder while also give a much better feel. Going from a 7/8ths to a 1 inch master cylinder is the way to go. Also look for a 40-40 proportioning valve. As far as the comment about upgrading rotors giving you a better stop....I don't nessacarily agree. Slotted and Cross-drilled rotors are not nessacry these days (except under extreme situations). If you would like to have have somebody install brake components for you, PM me....Ihave a friend who specializes in Honda Brake and Suspension setups.