Caliper installs as they go are generally the same from vehicle to vehicle regardless of the brake setup. In the old days of the genesis of rear disc brake setups, the caliper piston would twist when turned in, as the emergency brake setup worked off the caliper itself. With the RL, and most modern cars, there are a set of shoes on the inside of the drum that take care of the e-brake.
The Acura factory remans run about $130.00, the best advice for pricing aftermarket, is to simply shop around
