Hmmmm, A well placed piece of # 00 wire between the starter relay and "ground" I believe on a Chevy SSH will get it "hot-wired" and you won' t need to use a key.
As for Putty, I use BONDO. But, you might want to check with "Marfa" Stewart to see what she has created, unless she's in prison by now. Jest a little NASCAR humor, LOL! Cap'n Buck NASCAR.....Rednecks turning left.
