You can still buy a 280zx master from the US on ebay, but it isn't cheap. JB1419 is the part number for the Patrol 1" however you can get a patrol 15/16th aswell, but like the 1" it is fed from the side not the bottom. I have a 15/16th, so, from this I have decided I will have my brake lines adjusted to suit being fed from the side and then I will be able to use either a 1" or 15/16th.
I will double check that the Patrol master 1" is still available asap, it was only a month or so ago.
One problem i see is that getting it from the US means the MC Bleed Thingy is on the wrong side. There is also the Price $260 AUD plus the Freight . Lets say $300.00 all up. Compared to $50.00 for a used one 280zx one and say $120.00 + to get a kit put in it.
Would be interested to hear from those who have had the 280zx taken out to 1".What kit did you use and how much did it cost?