Years ago, I fabbed a plate to cover the oil filter. Not that hard. A one eighth thick plate, about the size of your hand, slightly bent convex to clear the filter. Four little ears sticking out from the back and front corners, welded, hose clamps went around the ears and frame tubes to keep in place. Simple, really. I thought a few times that I could fab some up and sell them on here, but there is never enough time.
