Wanted - rear caliper for a curvy

Not had my SV long and decided the brakes were looking a bit manky so began to clean and check them over.

Unfortunately the rear caliper is goosed. The pad pins are badly corroded and completely welded in: tried splitting the caliper to get better access but still can't get them out. On top of that, the piston bores are very corroded around the dust and fluid seals.

Does anyone have a spare rear caliper they don't need?

Thanks

Andy