you know what Mx250, i have been knocking bearings in and out for 40 years now and your idea it the most simplest and straight forward "nice" way i have seen congrats on the heads up, bloody fantastic. I still use a "metal ended" screw driver with the blade ground off, lets me get down in there at an angle and tap it out (my Dad gave it to me already modified back in the mid 70's), new bearings i put in the fridge for an hour with the wheel/hub in the sun, or heat from a heat gun,(I NEVER use real heat on old casting), goes in easy. ONE THING THOUGH, i wouldnt knock it in that way, you need a drift to tap the outer of the bearing otherwise shorten the new bearing life as the balls and bearing surface take the whacks!
Off to Bunnings to get some dyna bolts for the next one.
cheers,
Kt