This scenario does not make sense from one very important perspective, Bosh's. Why would he want to go to an aging team that is already having some difficulty beating the Thunder. If he asked my advise (which obviously no one ever does), I would advise against it. Maybe his agent would like this because a sign and trade yields him the most money.
My prediction is that Bosh ends up in Miami with Wade and LeBron ends up in NY with Amare. These guys are getting so much either way there is no reason to restrict yourself to sign and trade deals just to max out on $$$.