So I answered my own question and found someone who makes custom curd cutters since I've been unable to reach John from PC.
He's a nice guy and he's based in Maryland. He says he's been making cheese for around a year. I invited him to the forum but here's a link if anyone's interested. He responds really quickly.
https://www.etsy.com/au/shop/TheGrumpySketcher (https://www.etsy.com/au/shop/TheGrumpySketcher)
Sam
Hi Sam,
If you will be looking for a stainless cutters we can always help.
Attached are examples of our work.
Cheers
Lukasz
Hi all,
I have a curd cutter from Lukasz at cheese kettle. It is fantastic.
Well worth considering if you are in the market for a curd cutter or any other stainless cheese associated items.
Mathew
Thank you,
I will keep this in mind if I ever scale up.
Sam
I just discovered the same guy on Etsy and am going to have him make me a dual cutter - horizontal and vertical cuts at the same time.