Magnum Valve Cover Risers

Would anyone be interested in 1/2" thick 6061 aluminum valve cover risers? They would be cut on cnc mill. I thought even possibly o-ring grooves to ditch gaskets? I have never used risers but have seen on a big block Chevy. I see double the potential for leaks tho..... Not sure im gonna make them but kicking it around since tall magnum covers are like 200 on eBay. Shoot I might still just move baffles up in my covers yet. Im just a fan of stock magnum valve covers. Thoughts?