Ok so I'm feeling even better about this deal. Haven't signed on the dotted line yet but here's where I am so far...

Dealer checked & the X5M winter wheel/tire (298M) package is no longer available. All units sold out so I would have to wait till Fall until this year's winter package is released but he can't guarantee me a price although he said he will certainly "work" with me & give it to me at dealer cost. This is coming directly from the business manager not the salesperson so I trust he'll stick to his word if thats the way I go. He improved my deal a bit to compensate for the "risk" of the wheels so here's where I'm at:

$1K over invoice on a custom order 2012 X5M!
Dealer is applying in the BMW 3M stone guard as part of the deal
12K mile 36 month lease w/ $0 down and 7 MSDs which will reduce the MF by 49 basis points & 53% residual
Money Factor is .00149 less the MSDs so final MF is .0010 that's 2.4% which is an AWESOME rate so payments before state tax will be $1245/mo

Now this has all been verbal so far so I'll see how the paperwork looks but so far so good!