Thanks all so far. What I had guessed was Triumph (or any manufacturer) would not go through the effort of designing their own TPS but source an OEM one. From Aliexpress.com you can buy one for a Honda Integra or a Cadillac for around $10USD. Knowing the mark ups on OEM parts ;-) I would think the Triumph one probably does not cost them much more to have made. The operating principals they same for car or bike, whatever.
I can afford to buy an OEM one, and I don't need one right now but I'm sure the time will arise and I'd like to have a spare for that time, so while the pressures not on, I thought I'd start looking.
I'm going to take mine off this week and see if I can get a manufacturers part number off it this week
Thanks so far