Air bag help, Windshield, both airbags, st205 bumper, re-bar, frame pushed in, more? Options

[_mikeE]

OK guys, so about 3 weeks ago, I get into an accident on the front end passenger side; and BOTH my airbags deployed resulting in also the passenger airbag breaking my windshield when deployed. Not to mention, I've also trashed my st205 bumper which breaks my heart the most, and the re-bar pushed in the beam it mounts onto back and also broke my passenger side hi-beam headlight.
Now, I've got the steering wheel and the passenger side airbag coming in, and windshield. I'm not gonna worry about the bumper and re-bar just yet and the beam frame is getting pulled back out.
Now, I knew I had to either replace or reprogram my SRS airbag module but as I was talking to the mechanic and inquired him about how much it'll cost to install the airbags and he says since I got in a front-end collision, you're going to need to get new impact sensors, and a new clock spring as well. And quoted me about 5-600 for the installation in which he claims it will be a 5-6 hour job
And also, would it be a wise idea to buy the airbag and clockspring USED off ebay? I'm getting my steering wheel airbag off ebay and the pass. one off a 6gc member.
Just wanted to see if I could re-use my clock spring and if I absolutely had to replace my impact sensors because I'm trying to keep the costs at a minimum as I'm already spending a lot.

This post has been edited by _mikeE: Dec 12, 2008 - 5:03 PM