71 suburban rust repair help

[04ls1gto]

Made some progress on the floor repair today. Took out the spare tire tub and removed all the bolts with a combo of drill, air hammer, chisels and every other tool I could think of. My father in law and friend showed up to help with plywood removal. After that I drilled the spot welds and removed what's left of the cross member. Next step I'll patch the bottom of the C pillars and rocker, after that I can build a new cross member