I'm familiar with the late Matchless singles with the Norton oil pump. I had a '66 G80CS up until a few years ago and also have ridden a '66 G80 road version (the one with the zig-zag lightning bolts on the tank). I thought the road bike was wonderful. Riding a Matchless single is a whole 'nuther world. Parts availability for late Matchless singles is very tough compared to the the '63 and earlier versions. The AJS/Matchless Owners Club in England (jampot.com) has a spares scheme and it is very good but that bike would be a rare bird.
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