Welcome pipefitter44,
To start, the mix match of parts is not that uncommon when after the war these steeds usually were overhauled at one of the government, (U.S., Europe, South African) depots. The Jeeps were torn down to the bare frames and the piece parts were all sent to different sections of the facility. When it was time for reassembly, the workers would just pull parts from a bin and throw it together. The parts were to have been all interchangeable, so there was little concern of fitment.
http://www.ewillys.com/2019/02/12/je...ning-programs/
$14,000 is a steep price, but considering what you are getting, I would consider purchasing it if I were presented to me. The hodge podge of parts adds to the history, in my opinion.