The rear wheel is a 26" mtn bike. It is a 48v 15ah lifepo4 system, with a 1500w controller. The charger is 5a, and everything is included in the purchase.

I got here via your post on ebay. I would be more interested if you could give some details. Like what is the rear wheel diameter? What is the voltage of the system? And what type of batteries/charger do you use and do those come with the purchase? Also some video of it actually running would be much more reassuring than a walk around. :)

I see the freewheel on the opposite side... but no drive chain or pedals. Is this project complete? Am I missing something?

There seems to be NO PEDDLES there for it is a motor cycle in most of Canada and I would think the U.S. It's not a tadpole. I do not know where you are but do you have to license and insure it? In Canada you would have to get it plated and were a DOT helmit. The local cops this summer were checking the e bikes to see if they met road regulations. That means no after market kits and nothing over a given size. One man had his pedles turned so he couldn't use the peddles and he was ticketed for an unlicensed motor cycle.