Brake Master Cylinder ATE classic for 71 Squareback advice?

[vwsplitvan]

I am replacing all the brake system on my Cali import 71 1600FI Auto squareback.

The replacement master cylinder is a little different to the old one on the car. All the brake lines look original but maybe the master cylinder has been replaced in the past? maybe not?

Can anyone confirm the ports for the hard lines?

OLD MASTER CYLINDER
It looks like front 2 ports either side go to the front discs brakes
And rear right side port goes to the rear of car
Rear left side port is brake switch
and on the very end/tip at front of master cylinder is another switch (warning light on dash?)
pic

NEW ATE MASTER CYLINDER
On the end/tip where the switch went is now blocked.
The 2 x ports on the left side front and back look like they may be for the switches as the port holes are larger.
On the right side there are 3 ports with smaller diameter holes.
2 at front and 1 at the rear.
(Are these for the hard lines? the 2 at front for front wheels and the one at rear running to rear of car?)

And of course the 2x plastic fixings on top to the reservoir.
See pics Also will the old switches fit into the new master cylinder?

Any advice appreciated T3s are new to me. Thanks Mike
_________________
SBS #20 UK

RHD 62 Ragtop Beetle Beryl Green
LHD 69 Squareback Peru Green
LHD 63 Splitscreen Highroof Pearl White

[KTPhil]

The small ports go to the brake lines. The large ports are for the switches.

Here is my original '71 master:

Here are photos of my replacement master:

I had to replace one line since the port was in a different location. Suggestion: Bend TWO coathangers to the required shape. Straighten ONE of them out to get the right length to buy. Then bend the new line just like the second coathanger. It will fit like a glove.

[vwsplitvan]

Thanks KTPhil
_________________
SBS #20 UK

RHD 62 Ragtop Beetle Beryl Green
LHD 69 Squareback Peru Green
LHD 63 Splitscreen Highroof Pearl White