Managed to get my two red Jaguar seats for £40 the pair, and (thankfully) the electrics all work (had to fit three new switches). I've stripped off all the unnecessary plastic mouldings, someone had moved the switches to the front already and I cut off the mounting bracket for the switch assembly. The seats are then 510mm wide at their widest point, and the gap between central and side tunnels (my car is an Apal with its own chassis) is 515mm so fitting will need to be rather precise.