where to find them in the USA
I found one in this museum in Nashville TN.....http://www.lanemotormuseum.org/collection/cars/item/peel-trident-1965
If your looking for one to purchase, since they only made them for 2 years and limited production, they are in museums and collections and they don't come up for sale quite often. If your persistant in your search capabilities, you just might find one. TopGear USA did a segment on one last year.