replacement seats

I am looking to change the seats in my v origional lhasa green mk1 to something more comfortable for my ageing back, which is more used to modern softie type arrangements. I was planning to keep the green stripey ones which are in good nick for any future retrofit, partic if I can get them re-stuffed.  But where to start? All help will be appreciated.

regards

peterb
wye, kent

Any mk2 seats, corrado seats (nice and comfy but slide adjustment handles on the wrong side) or any recaros with a simple sub-frame welded in place...