Ride on it's way! Feet?

I have a Ride processing for shipment soon, an upgrade from a BBE that's about to stop functioning. (I can repair it, but I don't want to.)

One requirement I have is to slide the machine on my quartz countertops. Anyone know what size teflon/PTFE sliders might work best? I'm pondering keeping the rubber feet, getting longer bolts and tensioning enough to keep the damping effect of the rubber feet.

Looking forward to stepping up my game!