VIC WTB - MK1 gti brake calipers

[Browneye]

Hi all.

I am looking for some front calipers for my ongoing mk1 project. I simply need some bolt on calipers (and appropriate carriers) which will allow for 20mm vented discs (239mm). They seem impossible to find anywhere so any help would be greatly appreciated!

Let me know if you have any

Thanks in advance