The lights shouldn't be much of a problem. I had the opposite of your situation, my 86 has a 93 interior from the original owner. Only the low-beams worked, I got connectors for the hi-beams from Advance Auto for under $5 total. I don't remember the exact wiring off the top of my head, but with a Haynes manual it was easy. Someone else can tell you for sure, but I think there are 3 wires into the 87-up lights. One is for the hi-beams. Just cut that, connect it to the positive hi-beam wire and ground the negative hi-beam wire. I think that's how I did it. I can drive with all 4 head lights on which is what I wanted. As for the front end, if you find a place that makes 'em let me know cuz I need one thanks to a deer!