I have one for sale. Came off my 86 WH-1. Good shape, with aluminum support and impact strip. I'd like to see $175 for it, but I will consider offers. I need room in the garage. Can deliver in DE/PA area for small charge.
I believe a friend of mine & fellow Turbo Buick Board member is going w/ fiberglass front & rear bumpers, so will have him contact you. The chrome ones on his car were in excellent condition as far as I remember & he was talking about selling them when we talked last week.