Full tube chassis?

[GMracer]

Well here is my dilemma I have a 2001 Silverado 2wd currently rebuild frame up air ride suspension but setup for a mean street high horsepower setup. I took the factory frame and lowered the body mounts to get the the frame tucked up a little more inside the body, notched the rear half to accommodate the low stance and ran a 4link setup with a pan hard. Up front I setup a torsion style bracket with bags and planned to run ART DA shocks to dial in my ride.

Now my thinking is since the factory frame is designed to be about 5" taller than what my ride height will be, the front suspension geometry will be way off, as in the control arms instead of being parallel to the ground they will point upwards a bit. Now I could run drop spindles (2") but still the geometry wouldn't be ideal.

Lately I've been thinking of just building a full tube chassis and re-setup the front suspension to get the arms back to the being parallel to the ground like they are at factory ride height. The rear half I am redoing no matter what, (triangulated 4link setup inboard with 20x15 wheels out back) but this front half is what determines whether I do just a back half or a full tube chassis. Do you think the factory geometry would be adequate enough? I'm really open to opinions, this forum is a lot more technical to suspension that my other forums.

Thanks in advance for all the help!