Hi Simon,

>what I need to establish about it when I'm looking?

Things I know of:-

. Original was a "Prestolite", originally intended for starting boat engines. Originally as fitted to Notruns, it had only two brushes(?), makes it more of an assistant to the kickstart; 4-brush conversion makes it better.

. Original starter cables were weedy, even weedier than T160 ones. I upgraded my T160's cables to slightly thicker Vehicle Wiring Products 170A 196/0.40 decades ago, no electric-starter problems.

. Standard disc-brake calipers.

Ime, if at all serious about acquisition, you could do a lot worse than talk to the guys in Andover Norton.

Hth.

Regards,