There is a reason those things are not in common use anymore. Very difficult and dangerous to ride. Worst is stopping -- easy to go over the handlebar for a spectacular face plant. Strictly for a dedicated historian.
That said.... That guy's products are top quality and meant to be ridden.
Elliot's Bicycle Service and Beverage Dispensary expects to be at 5 & G. Bicycles repaired, loaned and whatnot. Hours likely to vary.