This would give me the new bow feel without the price
Not hardly.
New cams ($150+), custom string lengths made($80 - $120), and possibly new limbs with different deflection rates ($200+) and if you need the services of a pro shopto change all of this stuff up add in another $50 - $75for labor.
A very expensive way to void your warranty on a perfectly good bow. You would be better off buying a bow with the specs that you want.