Saw this cover for sale on eBay, they have a Make Offer button, so you could offer less.
Maybe this is still more than you want to spend.

https://www.ebay.com/itm/664-CHRYSLE...AAAOSwEJZc9dxM

It looks like that has the air bag assembly bolted into it.
I'm not sure if that comes apart, but I would be afraid to trust my life to an airbag that may have been exposed out in a junk yard to the weather.
If you think it could be swapped from your existing one, I would trust the airbag in my own car compared to using a bag from a junk yard.