Brake caliper Question

[Iffy_E30]

Hi all I am doing a rear drum to brake conversion for my 320i.

I have accuired rear trailing arms with discs but am missing calipers.

Q. Are all rear calipers on the e30 the same ?
Or are the 318i and 325i etc different ?

Also I have seen pagid calipers at euros but they don't come with the brake caliper carriers which I am having trouble finding.. any idea where I cam find these otherwise
Will carriers from any e30 rear caliper fit?

Thanks in Advanced

Iffy_e30

[DanThe]

Touring calipers have a slightly larger bore, 35mm IIRC compared to 33mm of the saloon, but that is the only difference, all carriers are the same