What caliper will fit my Z50 (if any)?

[Custom]

As a few of you know i got a quite highly modifyed Z50 and ive hit a snag with the latest mod, fitting a disc brake front wheel. Ive made the spacers, got the wheel centered and the realised that my origional plan to use a caliper of an orian AGB21 just was not going to work.
Any ideas on what will fit?

I would prefer to just buy a caliper but if i have to get forks as well i'll do it (abit further down the track )

 

[no_crf50_here]

I know some disks come in three offsets, maybe that will help.I'll have a look in the shed and take some photos if i have what i think you need

 

[Custom]

cool thanks

 

[Custom]

If i cant get a caliper to suit the forks i'll be making an Earls Link front end for the Z, you guys dont want to see me do that now do yas?