Seat Re-trimming and refurb.

Hi there, I've got a 79 series 1 Golf L and I'm looking to get the seats back to near original condition. There actually not to bad with only 'light' cracking and they could do with new sponge. The seats are the stripey tan version (Gazelle -BS) which were only found on the Golf L, LS and LD….in certain colours.

Does anyone know of anyone\where who could do a really good job on these? If so what would I be looking at paying out?

Any help will be much appreiciated