No! The Minor brake m/c is under the floor in the chassis rail. Nothing at all like the Mini one.
Bad luck.
They are a PIA to replace especially if some sod has put the bolts in so that you have to remove the RH torsion bar (or use the butchers method of levering the bar aside)to remove the bolts holding the m/c in place. When reassembling put the bolts in so that the nuts are on the torsion bar side. It's a long, long time since I did this but I think you can do it that way.
Ist car I owned was a 54 Series 2 Minor with 803cc of wheel spinning axle tramp power.
Regards
RonR