If it is a made in USA Stingray, buy it immediately. You can flip it for more than $150 for sure.

Dude, if my eyes don't deceive me, that is a three-speed Stingray.

You can sell the rear wheel for more than $150.

A Sturmey-Archer hub would suggest that the bike is the real article. It doesn't seem someone would swap an S/A hub to a repop and sell if for $150.00.