I will probably go with the shock mounts at McMaster. I use them alot for other things but didnt think about them for this one. Thanks Red! Meanwhile, Harold, excellent idea and if you have an interstate highway anywhere near you, remember it for a good source for LOTS of retread that can be used for many things. I will also put rubber under the beams as added isolation, Thanks Ted! This is a wonderful resource to help a person get their thoughts to coalesce. It all makes sense to me now!!