I don't think its a good idea at all. Hes big so he has access to all the studios he wants for mixing, so I know hes not gonna do major mixing on that thing especially with bose speakers. 99% of what hes gonna do on there is pre production, so an apple mini maxed out or a macbook pro maxed out would be better and also fits in one box instead of carrying around a second case for the mac pro.
BTW, nobody buy bose products, that company is 110% B.S.