If you get some drop-in pistons, that will get around the need for boring/honing. Nothing beats the factory honing in my experience. Poorly honed bores will cause huge oil consumption, which I've experienced too often with rebuilds.
I think Wossner do drop-ins for these motors. I've used them in the past and they're pretty good.
Depending on your power goals, you may not need rods as they ramp up the price a fair chunk!