ww2717 The machine only takes the Makita part and while backing plates can be cut down but I don't suggest it. The 6" gets into most areas very easily. I use a 6.5 inch pad that's pretty thick most the time.
I did make my own using the foam and velcro off a regular rotary backing plate by first cutting the diameter I wanted the sawing the foam off the plastic hard part of the backing plate and then gorilla gluing that onto the hard plastic part of the Makita backing plate and it worked/s fine but it was a lot of work and the techniques I used included the use of machines not readily available.
SVR, the metabo doesn't have the same action at all. It's dual mode only in that it changes the diameter of the orbit, which, effectively doubles the movement between the pad and the paint still - I don't believe - would get the same movement the Makita does. I know the Makita is expensive - the first one I bought was $500 and after I used it one day I bought a spare.
All the best guys, good luck.
Robert