p-10 disk brake advice

[buckwheat1]

I am researching to do a disk brake conversion on my 69 p-10 and have come across a few questions.

None of the kits I find say they will work on a p-10 but my understanding is it is the same chassis etc. as the c-10 so the parts should be interchangeable. Is this true?

Also some of the kits say will not work with stock wheels. Do I need to take this in to consideration when I buy a kit? I am running the stock 6 lug steel wheels.

Another problem I am trying to address. There is no room for power brake booster of any kind because so is the disk brake conversion going to help? should I plan for disk all the way around or just do the dick front and drum rear.

Thanks Shane