I have a 1981 Kawasaki kz440 LTD that is missing the air filter element canister that connects to the air box. Since these are hard to come by (and when i find them, they are expensive) i would like to fabricate one to the specs of the cap but i don't have these dimensions. If anyone could get these dimensions for me it would be greatly appreciated. I need to know the size of the two main holes and the smaller one in between them. i have an idea of what it looks like but i don't know any of the dimensions.