help finding a gas filler for my blazer tank!!

[67cst]

i need a filler that a 1 1/4 inch hose can clamp too, i got a marine filler but its 1 1/2 inches in diameter, and i dont have enough room to but an adaptor in there, so what im looking for is something that i can bolt to the wood in my bed and the hose can clamp too, if anyone has any good links or something that might work for me let me know please, id be willing to swap for my brand new marine filler and cash or whatever we agree too, thanks

DEREK