I don't think Aftermarket front suspension and budget are in the same sentence. Making the tunnel big is never a bad thing. Trim the K frame. This makes pulling the pan and the motor far easier. I'd run a motor plate. Simple and gains clearance. removing the inner fenders gives more access if snout bars are installed in the correct location. Coil overs can replace the torsion bars in the stock location. But I've seen a few sets of custom headers that actually come off pretty easy with the stock stuff.
Doug