My concerns would be whether the compressor, compressor brackets, and manifold from the compressor from a B2200 would fit. I'd also check to see if they used the same condenser. In-cab parts should be the same, unless changes were made over the years. My own dealer-added AC for my '88 B2200 was from Wynn's in Texas.
Maybe call Tim or Jack at AMA AC in Phoenix 602-233-0090, see if he can answer, or post at ACkits.com forum
Personally, I would have reservations about installing a 20+ year old AC system; but what do they want for the complete parts from that B2200, and what year is that?