Looks like he spent all the money on facade and not much on what makes a motorcycle a MOTORcycle.
If you want to pay money for a facade of a motorcycle then go for it.
If the motor won't turn over, I'd have to assume it is trash, which means it is a parts bike, or you will have to get another parts bike to make one whole motor cycle.
To eliminate a kick start mechanism issue, put the bike into 5th gear (If you can get to 5th by rocking the bike fore and aft), let the clutch out and see if the rear wheel can make the engine turn over through a four stroke cycle (2 revolutions). If not, I wouldn't pay for the motor in that bike, I don't care how pretty it is to you. You will have to buy another motor for the bike, or enough parts and the time to remove repair and reinstall the damaged one that is now in the bike.
There is something about how the CL add was worded that leaves me full of distrust about his assessment of the bike, and he is looking to get as much for a machine he has determined as hopeless, from anyone willing to buy a facade instead of a motorcycle.
Add up the parts value that you see on it that you like. That is how much it is worth to you.