Wideline and alloy T100 is a very sweet combo that eluded me. I built a few 650s and T100s and the 500 single carb and a GP but somehow the alloy 500 still calls me.
My first lid was a pre-loved pudding basin and the first I bought was an Everoak jet and after that was the same type that Chas Dean at Motorcycle Mechanics used to use with leather inside. I used it with bubble visor which was OK but distorted vision around the edges and then with different goggles over my glasses and of course a leather face mask - remember them?
This was my first bike and obviously it became a cafe racer. Ports were opened up, clip ons, rear sets, alloy guards, home made (crap) seat, expansion chamber - some things never change.... And the jacket used to be my dad's and I died it black (was brown). That was probably 68 or 69.
Later came this T100 in a T5 frame IIRC, High comp slipper pistons, Thruxton 650 crank with light flywheel (2mm longer stroke)
and so on. But someone stole the pipes.
So I got other cheap pipes because I used it to commute 75 miles each way back then - must be where I lost the brain cells....
It still had the GP /race kit inlet manifold chopped monoblocks, alternator and Capacitor (no battery), halogen headlamp and K2F magneto. E3134 cams and 3059R followers and the tank was fuel in front and oil at the rear. I tried a couple of tachos and they were inaccurate so I ended up with speedo and oil pressure gauge to keep an eye on the bottom end.
The guy I sold it to was hit by a car in Edinburgh, so he kept the motor and made it into a Triton. He told me is twas way faster and sweeter than his mates Bonnies, so who am I to argue with a happy buyer.
BTW 47/6 sounds right form my first Jet style helmet but that was so long ago I can hardly remember.