I just bought a wood and fiberglass project plane (about 80% done). It is in good shape, but has been sitting in a workshop/hanger for 30 years. Some of the steel fittings and hardware have some surface rust. I was gonna remove all the metal brackets and clean them up and paint them, but what about the lightly rusted nuts and bolts?? Should I replace them? And what about the turnbuckles and rod ends? Replace those too? This stuff was all bought brand new (has all the receipts) but has been sitting around for 30 years. Thanks for any advice.