Having swapped seats in an XF I got to understand how Jaguar change looms, control modules, connector blocks and even power source for seats.
I achieved my aim but had to in effect retro fit electrical and electronic parts of the original seats into the new (heater pads, etc.) by a complete strip down.
From this I would say physical figment won’t be a problem, but electronics and control will be very challenging. The sort of project to undertake if you own a car and happen to pick up a pair of different seats on the cheap and have time to research, test and play. Not the basis to buy a car.
Happy to be proved wrong if someone has done it