The mechanical stuff wasn't really that bad, I'd never really had an engine open before. And I managed to do it without too much drama (haha, not seen it run yet though...)
The cleaning and painting stuff idea, has been a nightmare however. It is so time consuming, and means I have to take everything to bits, and I don't have a very good space to paint or keep things clean.
With your all your skills you'll manage it no bother!