Vibrapod - Isolator Isolation Feet - Model 4 - Set of Four

What are the diameter, height and inside hole diameter for each of the Model 1 up to 5 ?

If I use these with the Scout under the existing feet, will they raise the level of the turntable too much for the separate motor and belt drive?

would furniture rubber square for the legs work?

A set of 4 will support 64lbs. My amp is exactly 64 lbs. Should I get these or the next model up to handle more weight?