Greetings, I am a new member... Have a question about how to identify hull numbers on an old sleekcraft jet boat. Seller said it was "late 80's." From what I know, it looks early 70's. Hull numbers hard to read, maybe: SLE- S7705M82A. The name on transom is "radiant" not sure if that's owner name or sleekcraft model name. The boat is like a corvette in the water. about 20 feet long, very "sleek", big block (GM-454, block number 361959) in rear with headders swept up and back .(upside down for a car). Does anybody know how to identify this boat? -Thanks in advance.