Glassbowtie77

I've been looking for a replacement set of seat belts for my C3 due to the usual lap belt retractors being rusted solid. I've read where some forum members have used F-body belts from a Camaro of Firebird. Is it possible install belts from a C4 or C5 without too much modification? I know the lap belt retractors under the seat are the biggest problem to match up and get to fit in there. Do you use retractors under there again or use the metal anchor end and bolt like they use on rear seat belts in most cars? I may have a lead on a nice set of black belts from a C5 and want to make sure they'll work before buying them. If anyone has any other ideas I'd like to hear them as well.

Thanks.