What Products are Needed in the A-body world?

I think a bolt-in 4-link is do-able, although naturally anything welded in is better. The upper shock mount could be bolted in just like a tubular crossmemeber. The 4-link tabs could be done using 4 bolts to hold them in (yes, I know welded ones are best) & the tabs on the rear-end could be weld-on deal or have an extended tab that's contoured to the axle tubes & held on with U-bolts. Again not ideal, but do-able.