Replacement Brake Calipers

[imblue]

Hi guys,
So basically one of my rear brake calipers on my NB8A has cooked itself (the adjustment mechanism is dead).
Does anyone know some good places to look for a cheap replacement?
Global is fine, and I plan on replacing my entire brake setup down the line anyway, so cheap is what I'm after.

Thanks

[93_Clubman]

Had a look at this early this year - as the caliper is heavy the UK (MX5Parts) or US option becomes less cost effective due to shipping, so refurbished locally or DIY, as kits are available, was more cost effective. US, UK & AU ebay gave visibility of some options, & there are a few threads on here from the last few years raising the issue.