Flattery like that will get you everything Mathew !!!!

You can buy a NZ$300 GRP bearing removal tool - or do the following :

Like mattwoodcraft said, the oven is the go.
Take everything off including the crankcase carb O ring, so you just have the bare crankcase with the two bearings in it. I like to use a penetrating oil to make the process easier. I use a product called PB Blaster, it is wicked stuff. Every RC tool box should have a can of this, along with your WD40.
Give the bearings a good spray of the penetrating oil, then let them sit for a few hours if possible. Blow off any excess oil before you put the crankcase in the oven, as it does stink a bit otherwise
Heat the oven up to 300+ and bake for 20 min or so until golden brown

Take the crankcase out of the oven (with oven mitt on) and just by tapping the rear of the crankcase on a bit of wood, the rear bearing should fall out. Use a wooden dowl to tap the front bearing out.
Give everything a good clean, particularly the bearing seats in the crankcase. Use some cotton buds and methylated spirits to make then nice and clean, ready for the new bearings. While you are baking your motor you can put the new bearings in the freezer to shrink them up a few thou.
Now fit the new cold bearings to the still pretty warm crankcase, using the crankshaft as a guide to make sure they are seated square. Put to one side, and let everything get back to room temperature, then reassemble the rest of the motor.

I still want one of those bearing replacement tools though. They are soooo easy to use, and it is all over in 5 min. But $300 is a lot for something you may only use 3 or 4 times a year at best