I rescued the lovely tan leather seats from my 147 before it went to the scrap yard some time ago. Taken from a 5 door car. They are quite grubby from storage and also have a few permanent marks on them. Some effort and leather cleaner should bring them up to a good condition. I'm just too lazy.
The front seats are heated, but from memory I think that at least one of them needed a new switch (it wasn't staying down/latching when you pressed it). There is also the matching centre front arm rest. There are only two headrests for the rear- there is no centre head rest.
Collection is from Leamington Spa, will not post I'm afraid.
£100 Upwards of £200 on ebay when they're clean....