Gsx400t front brake master cylinder

[Sychologist]

Hi, I’m trying to restore my bike and put it back on the road after over 20 years.  I have managed to sort the calliper but I can’t bleed air out of the system so I’m guessing the repair kit hasn’t worked.  However I can’t find a useable cylinder and note other versions (non UK) use the rectangular reservoir rather than my round plastic reservoir and cap. My handlebar diameter is 22mm, can anyone suggest an alternative unit please?

[wraith]

If I remember the 400t had twin discs? 

If so you can use anything really that has a twin disc, even gsx/gsxf/gsxr/bandits