Yes - Brake Re - Line Services Unit C2 West Point Industrial Estate, Penarth Road, Cardiff CF11 8JQ Tel 02920 702900, They operate a very quick turn around service re-lining the brake shoes that you send them.
Give them a ring to discuss what material you want them to fit. (in the past they've fitted 'Woven' material but I found they grabbed on the front wheel especially riding in wet weather, not something you want to experience leaning over on a bend and needing to brake for some reason. I've also had them fit Kevlar material, quite a good brake resulted but found it wore down quite quickly, they no doubt can fit other materials).
In answer to your second question - yes front and rear brake shoes are the same, having said that Ariel fitted Alloy brake shoes to early Leaders both front and back with a fulcrum adjuster, they then introduced Steel brake shoes but later still used the same steel shoes but drilled holes in them for fitting anti squeal springs, obviously if you use Brake Re-Line Services you will get back what you send so not a problem but thought I would mention these differences. (if your brake shoes don't have the anit squeal springs fitted its easy to drill holes in order to fit them.
Photo attachment shows Kevlar and Woven brake shoes relined by Brake Re-Line Services. Roger