frame swaps in California

[no1udknow]

Hey guys, I finally got my donor truck, a 85 c10 with only 79k miles on it, (it's almost too clean to chop up....almost) anyways, neither the donor, or my 58 are titled to me yet, should I title them in my name first and then go down for a vin inspection, or should I do the swap and then go down and get an inspection? I was wondering if anyone else in California has done this? and one other question, one of the spot welds is broken/rusted through on my Vin on the door, and the other is hanging on by a thread, it matches the frame, and I would like to sand/prep that area anyways, should I remove it and just take it with me? I have read horror stories about people getting their trucks seized in various states.
Thanks in advance,
mike