You'll need the torque converter end mount which is shared with the Mini.Matic. The two mounts off the engine front plate are not used. The radiator to engine backet should have the holes for a conventional Mini engine mount.

There are two versions of this mount in Australia:

The cast aluminium one used on Minimatics fouls the harmonic balancer on a 1275 motor.

The pressed steel version used on 1275 autos in the 1100/1300/America body was designed to be able to be used in a Mini (but apparently never used in Minis), so it has the required mounting surface and holes to take the engine mount, but it will fatigure and break in service if used as an engine mount without modification. Thirty seconds with a M.I.G. welder before you assemble it will save hours of anguish at the roadside and in the workshop several months later. I don't have one any more, but if you email me photos of yours I'll mark up where it needs welding.