opinions please!

[Harold Shepard]

I was working on the current project this morning and found something very troubling. The "B" pillar on the drivers side is trash, but was hidden under 1/2 inch of fiberglass and bondo. This thing waves bigger than some I have seen on a ocean, it looks like some severe accident in the past and a quick fix. Now to the question, 1) do I pull the dents as well as I can with a stud puller (which I would have to buy) or do I find a donor and cut the "B" pillar out of it and weld it back into mine? I was thinking of cutting a roof seam and just above the body line at the cab, even with the drip rail. Is there a better way than either of these???