I recently was in an accident with my '87 K5. As far as I can tell it was only body damaged. The fenders, hood, grille, and bumper are toast. Since I have to redo the whole front end anyway, I was wondering if updating to an '88-'91 grille would be an easy bolt-in, (radiator support and such). I have the original dual headlight system that survived intact, but was thinking of going for the '88-'91 single headlights(I like the looks better, and I don't see to many of those). How hard would it be to re-wire? A wiring harness swap would seem like a simple solution. As an added note, the vehicle was totaled because of the cost to repair; pays off the loan, but definitely not the way to do it.