Looks fantastic Bob !!
Re the magneto - best to get it overhauled - they can be a pain otherwise.
I have one in the shed here I will have at the rally which is a full reco we got done last year for the TS my son is restoring - in case any fail !
I got the OC out and took it for a run at lunchtime today with its refurbished and modified exhaust - ran like a dream but unfortunately the new nickel plating peeled off !! Back to the platers next week.