Sweet bike!
Don't know what that upright bolt in the timing cover is for. Nothing under there that I remember, and it's not a stock thing.
Otherwise, looks like a great start to a super clean bike.
The 9 bolt head is not original, but generally preferred for better sealing. There's some inlet/valve/combustion chamber differences in different 9 bolt heads, but nothing to get too wrapped up in, and nothing sneaky that's going to ruin the bike, but take some notes and pics while it's apart.
Podtronics makes a nice 12v reg/rec/capacitor to get rid of that zener. Works fine without a battery, as long as you're not expecting running lights while at idle.
There's quite a bit of difference in top tube width between the wideline and slimline, and anything that's in the tank/seat/subframe area will be specific to one or the other. There's different center stands too, some with long levers to aid standing (but which may detract from your street cred! HA!). I think they'll all bolt up to the same frame tabs though.
If it's your first Triumph, you're going to love sealing the push rod tubes! Tell yourself it's a labor of love, and take note of what comes out when you unbuild the motor. It can really be a nightmare
The gearbox is the "slickshift", that has a cam mechanism on the shift lever shaft that bumps the clutch pushrod for faster gear changes, particularly when flat track racing and the flag drops with your clutch hand in the air. Some love them, some hate them, and some remove the cam. You can also fit a 5 speed gearset into the box with a few easy mods, but the shifting isn't as crisp as the AMC 'box (in my opinion).
There's usually a brace tube that's welded in with a Manx toggle attached to hold down the tank. Tanks also seem to want to slide forward, so a forward stop can be nice. Rayson's Exhaust will have the tank strap, toggle, and subframe loop. NRP also has a lot of the same parts, and may advise for tank ding repair.
These bikes are always pretty fun to get into/look over, as they're not straight forward with everyone applying their own solutions to the problems, with some being quite clever. Your bike has a lot of the "right" parts though. I'm sure Brian is already pleased at the attention it's getting, if he's out there somewhere.
