Mounting flanged aluminum gas tanks

[polevault1977]

I finally scraped up enough green to buy an aluminum gas tank. It has a flange that run the full length of the tank on each side that can be drilled and mounted to the rear frame section. I think they intended for it to mount solidly to the frame, but I think it should be on rubber mounts. I'm trying to come up with a good plan for this. I know minibike and several others have this type of set-up. Any pics would be apprecaited.

I'm thinking the if the frame has any twisting going on, that it will rip the aluminum tank. Any thoughts welcomed.

Thanks, Danny