B£ Brake caliper refurb

[sciteacher]

1. I've nearly got the caliper carrier bracket retaining bolt of the front of the B3 (just one left) Once they are all out, I suppose that my best bet would be stainless bolts. Can anyone suggest where I could get them from.

2. The calipers might be a bit seized (she's stood for a couple of years) so I wonder whether to do a self refurb with kits from, say Bigg Redd, or whether to get them done by someone like Bigg Redd (admittedly at a higher cost).

Has anyone got any help/opinions on these bits?