Thanks,
A couple of things spring to mind.
A couple of the white metal casting are a little fragile. I broke one of the axle stubs trying to get it straight, fortunately there is enough brass tubing of the right diameter to make a replacement.
I found the the rear suspension instructions a little hazy, it proved difficult to assemble and get even. It took me a long while and lots of dry fitting to get it right.
The instructions assemble the wheels then shape the spokes (all 52 of them) I chose to shape spokes prior to assembly of the wheels using a home made cutting jig so they were all the same.
Hope this helps,
its a lovely kit to put together, and has proved a bit of a talking point to.