pretty simple part, shouldn't be difficult to make one.
Grizz
Like bazooka joe said, try MARSTAR, maybe also MILARM in Edmonton. You could also post a WTB on the EE. Even if nobody has spare "Indian" parts, British, Canadian or Australian parts should also work. Unfortunately, while I have some other trigger parts, I don't have a spare plunger, if I did I would have been happy to send you one.
Like bazooka joe said, try MARSTAR, maybe also MILARM in Edmonton. You could also post a WTB on the EE. Even if nobody has spare "Indian" parts, British, Canadian or Australian parts should also work. Unfortunately, while I have some other trigger parts, I don't have a spare plunger, if I did I would have been happy to send you one.