GMID Pricing and Negotiating

[DWPC]

I posted this question over on Edmunds H3 forum:

Can anyone explain how GMID pricing is structured relative to actual dealer cost? Its a bit higher than the invoice price, but how much of the GMID discount is absorbed by the dealer vs. GM.

Our dealer accepts GMID, but its proving very difficult to find an H3 equipped they way we want. To buy off-the-lot, we'd have to take one with $1500 or more in unwanted options. All the units equipped with what we want (Adventure pkg, auto, sun roof, roof air bags) also have the Monsoon stereo, XM, and trailer pkg that we don't want. I'd like to know if there's any negotiating room left with GMID pricing that will make it possible to make a deal on an "over-equipped" unit and avoid waiting 8-10 weeks for a factory order.