So my buddy built a hot rod tractor out of a bunch of scrap metal and the magnum 18 from a snapper. He was going somewhere and when he got there he realized he had lost the air cleaner. We've been trying to find one that isn't either rotted out or too expensive but we've had no luck. He can't put a round air cleaner on because the hood clearance on even the short square air cleaner is almost nothing. I'm at a loss. Why is this so hard?