[Oren Grad]

I paid about $400 for mine, on eBay. Not bargain-basement by any means, but a lot less than Camera West is asking.

Even for cameras that have a Graflok back, a slide-in like the Rapid Rollex is a lot quicker and simpler to use in the field - you don't have to keep removing and replacing the back.

If the OP really wants to use the Pressman he already has, it's worth considering. If the point is just to find the cheapest way to shoot roll film in a view/press camera, then yes, it might be more cost-effective to switch to or even just add a different camera with a Graflok back.