Looking for some advice about a caddy conversion

I have a '91 C1500 w/t model. I was wanting to install the '99-'01 caddy front clip on my truck. Everything that I have read has said it is a perfect swap. But these have been on trucks with composite headlights. Mine has sealed beams. Would I be able to swap the harness from one that had sealed beams or would I have to cut the wires and wire it up? Any help would be appreciated.
 
~C.C.~

The body panels will be an easy fit no problems. As for the Wiring go to a wrecker and grab the pigtails/harness for the front lights. We did that on a buddies Tahoe and it had the seal beams in it and they work like a charm.

Thanks. I was woundering if the pig tails were the same. I don't think I will be ordering the kit. I want the '99 cowl hood with the '01 Sierra front bumper and after market head lights and turn signals. So i'll just find me a radiator support and fenders seperately. ~C.C.~

i recently swapped my friends 01 1500 with a 02-05 caddy front and it came with new conversion harness due to the hid in the newer caddy lights!!!!