Glad to have been able to help, note the L1 and L2 are likley to be an inductive filter.
You can build a higher voltage, voltage divider very easily.
Sorry was not really advertising, just saying as it was if another manufacturer publishes their data so fully and freely I've not seen it. Don't work for them, sell them or even do a day job in the industry. The operator manuals are very good too for the cut tables, which I have wondered if you can equate them to other manufactures machines, although I'd suggest as I read somewhere... Don't focus on the ampage alone but the actual cutting power... Say the machine is set at 65a/140v, so the cutting power is 9100W... Rival machine... Say 60a at 105v... Cutting power is 6300W, so proportionally the cut speed of the rival is probably going to be about 70% of the ones in the published manual... At least as a starting point if you have only an ampage and target cutting voltage without any published data..
There are obviously other bits that come into it like air pressure, inverter frequency which may affect the concentration of the plasma flame? Arc? ... Whatever the correct technical term is of the plasma cutting zone.