Front Suspension ROT

That looks like rust ate through a lot of the metal and stresses finished the job. If it were me, I would have the engine compartment and under carriage steam cleaned thoroughly.

I would then pull the car apart, find a good donor car or fabricate parts to replace and strengthen the offending pieces, buy a decent mig welder and swap the parts over making sure you keep things where they belong.

On my '68, I found that the Z structure near the shock had broken loose at the spot welds on the inner fender well. I welded it solid to the inner fender and installed a complete chassis stiffening kit from US Cartool with a quality used mig welder I bought. It has saved me a lot of money from not having to farm welding work out over the years. I learned to weld by using Google, trial and error and practice. Mig welding is one of the easier ways to weld, but to be really good at it, it takes practice and experience.

The alternative is to have a body shop that is experienced with this type of repair do the work for you. You will likely be money and tools ahead if you study the process by using this forum and others and do the work yourself. There is a learning curve, but break the project down into steps and tackle them one at a time.