That’s nice Steve. Something I’ve wanted to do myself but never got round to it. Don’t think I’ll bother now my effort would never look that good.
Just a point on earthing. If you’re using a solid state TX then probly ok, might get erratic, if it’s a valve rig an unearthed beam may get a bit exciting should speed up your sending a bit! just tell them you’re using Japanese! Hi.
If you want to add an earth strap I’d go for a small pig-tail under the pivot. Say from beam to pivot support. Try one of them small pig-tails you used to find in old car distributers, on the points. That way it’ud do the job and not be visible.
Just a thort. Lovely job though. Bob
P.S. hope you use it not just put it on display. Things that work should