Old subframe New subframe?

[JON Q]

I am working on my 69 Z28RS (true) I am now in the stages of reassembling the car, so far I have done the DSE mini tubs and although I purchased the DSE 3" lowering leafs and offset shackles I decided I want to save money and go with quadralink... I ordered my Fikse profile 5s 18x12 in the back, still waiting for wheels to arrive from Driverzinc, its been bout 4months now.. I have a LS6 stroked to 427 by my friend Pecos @ LME (late model engineering) and Viper 6speed...
I will NOT be drag racing or autoXing the car, so for my stock subframe, I have rewelded, painted and have installed Speedtech upper and lower arms, tall ATS spindles and coilovers, for braking I will be running 6piston Z06 front and rear... QUESTION is, should I keep my sub with all the goodies? or sell it and order the DSE sub? And of course I am on a super tight budget..
Thanks for any suggestions
Jon