Nice job and sweet bike.
I am nearing the beginning of the process of thinking about rebuilding my wife's 72 Sport.
I have thought it might be easier (of course) and cheaper (maybe) to fine one in nice nick, and jump over a lot of work. It is unbelievably hard to find one in my area, even though we had a Raleigh dealer here for years and years.
Sourcing one on ebay and shipping it in is just nuts anymore.
Now if I could find a willing BF seller...