Hi ian, I only just found this entry now. The 517 looks great, and I really like the look of the outside bearings on the rear wheels. Never understood why M&L didn't include that in the kit, as I believe most of the class had those.
On the subject of polished domes, would you happen to know if Alan Gibson still supplies them in this condition? I only seem to be able to find them either in w/m or in unpolished brass from other suppliers.