I wouldn't go with the Volare clip - especially if you have the Mustang clip sitting next to it. I guess it comes down to how much work you want to do. Obviously, changing the shocks only takes a turn of the wrench or two - but then, you have a 1940's suspension.

Installing a MII suspension isn't hard, but you have to be careful, and be able to weld - or take it to someone who can. It will be a lot more work to use the MII, but the ride will be worth it. I installed one in a '30 A-bone sedan, and it rode like a slot car. You will not regret using a MII setup if you're looking for a cruiser.

If you go with the MII, I recommend Heidt's. They've done their homework.