I want to purchase a used dry mount press to easily mount prints up to 16x20". On eBay is a Technal 550 which the seller states may need replacement of the lower pad because there are many cracks in it. Does anyone know whether this would be necessary if mat board is placed on both sides of the print and board being mounted? I don't believe Technal is still in business so I'm not sure if the pad could even be replaced. Any ideas or suggestions? I have a Technal (150?) with the platen measuring 12x15". Could this be easily used to mount prints onto boards up to 20x24 so I wouldn't need to purchase another?