You can use plenty of other commercial molds to press at high PSI. Most microperf molds will press, the Busqui will, servi doryl molds will, etc. It's just that cheddar is the only really high PSI requirement, and most cheddars use stainless hoops and molds, or the newer microperfs. For goudas and other cheeses, opening elimination is typically done through pressing under whey, not extreme PSI. You get a good knit at less than 10 PSI for most cheese.
You can actually press the smaller French molds to more PSI. That 200mm lid is the biggest, yes. But there are other lids: 113, 132, 175, 180, and 188 mm. There are other French mold companies out there, but the products are not sold in the US.