Assist Pedal Power, Hi from EmilioSr.

[EmilioSr.]

After searching on line, Go Cheap, I bought a 1975 Desoto trike in fair condition. with a front friction drive.
Comment to the member(s) Try DIY- drive wheel from a kiddies car, like hot wheels.

 

[Tom from Rubicon]

"Try DIY- drive wheel from a kiddies car, like hot wheels. "
Hey old buddy, welcome to the forum Emilio. What I see is a nice trike.
Desoto Classic 3-Wheeler Adult Trike - FREE Shipping (rehabmart.com)
Front friction drive looks like the way to go.
If you are trying to impress the Babes, shop for a Harley Trike. All depends on how fast you need to get there.
Tom