got a reply back from these today about refurb calipers and seal kits :
www.bigred.co.uk
we list the seals for the s12 European spec.
Front kit BR206004 £18.90 in stock, Front Piston BR236014 £21 each, no stock 10 days to order.
Rear kit BR205424 £32.90 in stock, Rear piston BR235444 £17.90 no stock 10 days to order
All prices are for axle sets ( 2 calipers) and plus postage.
To do all 4 calipers in a standard finish £249 plus postage.
Regards
John / Sarah
Bigg Red Ltd
Tel 01905 428793
Open Mon/Fri 10.30-6.30