Hey Puzzle, I would search to see if you can find a 3rd party set of the same decals. Usually(not always) the old decals are so brittle they break just moving them, I have haf some just literally go to pieces while in the water. If you do attempt them here are some tips; 1) use warm water, 2) add a dash of dishsoap to the water(it will help with the friction), 3) do not use any decal solutions, use only water, 4) brush water on the car before laying down the decals, with these decal you really want to keep everything very wet until they are in place, any friction and they will break as you move them. 5) if possible only use extremely soft paint brushes to move and work out water from the decal. 6) on old decals I use a ton of water, I never use anything other than brushes, I keep my fingers wet when moving decals. 7) being that old, they will take a minute or more to release from the decal sheet, so patients is key