Details to convert pressed piston pin to full-floating?

Its the little end finish that says press fit or floater (bushed) so yeah, same pin. If you think the teflon button is going to wear the bore, just look at the skirts that practically ride the bore 100% of the time. the same hydrodynamic wedge is going to float the buttons as they float the skirts.
"....Any wear from a teflon button comes from grit in your engine getting trapped or imbedded in the teflon. A proper filter, changed often prevents this. In this case, teflon isn't the cause..." and if you have that much grit in your oil, I think youll have other issues than buffed cylinder walls. Also remember that the buttons do weigh more than circlips so take that into consideration. The buttons fit when you can feel drag on the rod rotation in the cylinder. clearance to suit.