Looking great... What are they lathing ? Surely not turning down the rivets ? Interesting to see them set on the inside rather than the outside, did they have many issues with rivets shearing (smooshing / setting off centre) I would imagine it would be difficult to get the head set square given the track guard being in the way.
Can Siemon get us some close ups of both sides of the finished rivets ?
Your project is going to be complete in no time at all ! When your done you can pop over the pond and finish mine too