Interesting thread, been following along. What's the latest?
Still wiring and gathering parts/fitting what I have. Found a front fender from an unifentified bike and yesterday tapped on it a bit to fit it on the T150. Was surprised at how perfectly it fit around the fork slider tops and boots with just a few blows against the anvil (old chunk of railroad track). Still needs chrome removed so that it can be painted.
It's wired enough that it could probably be rolled out and attempts to start made. Busy month though, just returned from family vacation and this month has anniversary, wife's birthday, several shows and other commitments (still need to spend a few days at church re-striping the parking lot).
My points setting box works well. Just a small project box with 9V battery, switch, resistor, LED, buzzer, couple clip leads. This way I don't have to watch for when the points open/close (my hearing doesn't allow use of the continuity function on my DVM). So, points are timed, coils tested, wiring to that completed (all now negative ground). I've stripped down an old GL1000 harness to use wiring and some connectors from it. No wiring completed in the headlight shell, but all necessary wires to it are run. Putting bullet connectors in the tank tunnel on each lead for rework/removal/troubleshooting access. Using connectors from Vintage Connections, that I've used many times before. Also the reg/rect from Sparck Moto their sister company. I will drill 1/4" holes for LEDs in the GL1000 headlight shell for turn, hi beam, and lo oil indicators. Oil pressure switch wiring will probably be run today. One of the front oil galley bolts is swapped for an adapter to 1/8" SS tubing running up the front frame rail to the headstock. There a union joins it to nylon tubing leading to a pressure gauge mounted to the handlebar clamp bolts.
It isn't going to be very "pretty". Some PO painted the fins with a remarkably tough paint that has resisted solvents, wire brushes, scrapers. But of course, 50% of it is chipped off. I've gone as far on that as I care to unless the engine has to come back out for full rebuild. Another PO issue was a cross-threaded spark plug hole. NGK spark plug thread chaser and about 20 minutes of patient work seems to have that corrected. A few cable ends needed ferrule adapters made for their outer jackets - an old brass stud and the lathe provided those.
Also slowing progress the last month was having three motorcycles, a Spyder, our furnace, and the washer and dryer all in our barely one-car basement garage (that hasn't seen a car in several decades). Finally moved outdoor power equipment around in the sheds so one bike could be moved out to join the tractors. The '78 GL1000 gets attention today though. It will go to an American Legion bike show Saturday, so needs a good clean & polish.
Once things are cleared out enough, I'll take a picture of present progress.