Seeing as he's made of glass, you can look through Greg Oden.
TP,

I would try to get Oden in two scenarios
a) as a free agent. I wouldn't offer him more than two years, and more than around 3/4 mil/year.
b) in a trade, if he takes the QO, he would be on a one year contract, right? If the Celts are not willing to pay what BBD will demand, wouldn't you sign & trade BBD and package him with the trade exception from Marquis trade + future 2nd round pick for a one-year-rental on Oden?
I think it would be a limited risk/ huge reward move. If he doesn't play well, he'd be an expiring contract, if he does, the Celtics will have the cap space to sign him after giving him the chance for a fresh start.