mine is a piece of wood strapped to tank with a ratchet strap, and I made clamps from cheap angle brackets from screwfix, they just bend to secure or bend then straight to release, these are screwed into the wood and at the front of the piece of wood is a cheap hose lock roller to make it easier winding in
Stu, you put a foty of that up somewhere. Can you put it on again so I can have another look?