A neat tip a friend of mine showed me to recreate the gasket around the air cleaner is a rubber O-ring you can find in the plumbing department of your local hardware store. You have to do a little work on the under hood plenum to get the hood to fully close but I think it looks good. Here it is on my OC Vette.
I will probably buy one these kits but the door window opening is driving me crazy. The top and bottom edges of the door window opening should align with those of the windshield. Correctable but unnecessary.