Ben...
There gorgeous, i loved mine and really miss them, and im sure waitey will tell you how nice they are now his little arse is sitting in them.
I have 16v Stitched into mine, and with subrames it came to around £320
I then bought 3 point harnesses to go with them (£80)
I love the 172 interior and dunno if i could put buckets in it, but these seats look really nice and dont give you a numb arse! i drove for 9 hours upto scotland with CS last year and i was fine.