I'm building a cmf f-150 body and I took HO scale train track,pulled off the rail and used it for the chrome side moulding on the top body line. I took an N scale track to make the bottom chrome around the wheel wells, the rails are easy to curve to shape and give a nice 3D look. then took bare metal foil to cover it, if you don't know bare metal foil is chrome or gold thin sheet of paper that has adhesive on the back,works good.i haven't tried yet but I bet you could trim the track down for door handles and other trim.lots of k-5 blazers being built I bet the N scale would work for the bottom trim.hope yhis helps some one.