I haven't seen another option any better than the Ram stuff. Are you doing just nav lights, or are you including landing lights and rotating beacon? I bought Ram lights for my BirdDog project, yeah, it sure did add up, about $120 or so by the time I got all the stuff. I'm doing nav (wingtip red/green, white tail strobe) separate wingtip strobes, Mars beacon on the belly, and landing lights. I'm going to power all the lights from a single source, with separate switch on the flap linkage to activate landing lights at just over half flaps.