Comming along Mal, One thing you might want to do is cut a slot above one or both of teh crankshaft bearings just wide enough for the crankshaft to pass through. That way the bearing housing can be loosened, slid outwards and the whole crankshaft removed, if built as drawings you have to remove a hornplate to get teh crank out.
You may just be able to see the slot on the flywheel side of my 1" engine.