The radiator size really doesn't matter if you have good fans, it's just more surface area, you could get away cooling an sr20 with a fucking civic radiator if you wanted to. Plenty of 300-400hp cars with dinky ass radiators. You're going to pay boutique price for a quality and custom part such as you're asking.
As far as custom condensers they're no different than radiators. You can do like Luis here and myself and use a Porsche condenser
Just order some hardline and have it bent up at an a/c shop or spend $$$ on a/n hose it's not that hard. Get a small fan from jegs and wire up your oem a/c fan wiring to it and blah blah.