If this was the future where body replacements were possible would you opt for one?

Imagine it is not 2011 but 2146, science has perfected the ability to alter genetics to the point a brainless human clone can be made, incubated in bovine and harvested when ready. Then said brainless clone was kept alive via life support and with genetic manipulation have the aging process sped up so young adulthood happens in about 14 weeks. If there were also a way to extract your brain, and transplant it into the younger, robust body that would live longer and be 70% healthier, would you do it? If you had the choice to just harvest need organs and body parts as oppose to full body acquiring, would that me more your liking, to extend your life? If it were quite common like breast augmentations of the mammaries, what would stop you from doing it if you could afford it?