caliper

I am current putting together a rigid Harley using some parts off an '82 Ironhead. I am running a 16 in the rear and a 21 in the front. I have seen lots of custom bikes running just a rear brake and am curious if there is a certain caliper/hand control/disc you guys would suggest using for that...

CityMilwaukeeStateWiPrice$100I've got a front PM brake caliper and a rear GMA disc caliper. both come with mounting brackets. front brake has a little pitting on the chrome. $100 per brake or $180 for both.