This bike is currently for sale on EBay. The guy made a really nice video walk around and then the second half is riding. The bike is almost all original with a one year only electric start! Sounds great!
https://www.ebay.com/itm/1975-Triumph-Trident-1975-Trident-750-T160-Triple/264548752837?hash=item3d98559dc5:g:r-YAAOSwGrBd3wX~&LH_ItemCondition=3000|1000|2500
https://www.ebay.com/itm/1975-Triumph-Trident-1975-Trident-750-T160-Triple/264548752837?hash=item3d98559dc5:g:r-YAAOSwGrBd3wX~&LH_ItemCondition=3000|1000|2500