Need answers on air bag light.

[fullthrottle52]

I did a search on the air bag dash light. Lot's on seat belt connector but nothing on replacing the control module. Took my box to my Indi today and after hooking up his scanner was given the bad news that I needed a new air bag control module. Apparently it is located under the center console. He needed my vin number to match it up to the right control module. I trust my Indi but is this a part I can purchase from a dimantler or on eBay or should I bite the bullet and purchase new. They want $761.00 for the part and about an hour of labor to install and program. Does this sound about right?
Just looking to be educated here on this problem.

Thanks to all that can give some answers.