Currently, I have a stock 2K3 vert cocker with a freak barrel and shocktech dropfoward. I would like to get some input as to whether it would be better to just upgrade the thing with a worr blade and other upgrades such as a nitro tank or should I just buy an impulse vision, that is $750, with freak barrel system, 4500psi/68cu in Nitro Duck Tough Skin tank, max-flow vert reg., drop forward, upgraded bolt(I think it is an Eclpise D.A.R.T. bolt), smartparts LPR system with tapworm?