We just got a 74 K5 at work with some front end damage and no engine and quite a bit of cancer. About the only thing I would want is the topper. Would it work on My 78? Would it be that big of a pain to convert My half top to a full top? About My biggest concern is the area where the topper would meet the windshield. I can get it for next to nothing so if it will work then I want it I have access to a mig welder and body tools so I can do the work Myself.