That's very much like the pumps I've used on home made systems. A little too much money for me right now though.
We used pressure pots made by Binks, intended for production painting, at the first shop I worked for, before they moved to a much more complicated system that used meter-mix guns and a large vacu-pressure tank. They came in several sizes from 3 gallon up to like 30 gallon IIR, and were great for pressurizing molds of many sizes. We did do some parts that were just too big to fit in even the largest pot though. At the small shop I worked for, we used a simple large pot purchased from a cookery store for the vacuum system. It worked great for the smaller prototype parts we were casting.
At my last outfit, they had tanks made by a welder. For Urethane resin, they injected it with a meter-mix and shot under a vacuum, which suicked the resin into the mold, then they shut the vacuum off and pressurized it. For epoxy resin they had a smaller pot on top of the main tank and inside was a cup they put the resin in. Then they pulled a vacuum in the smaller pot to de-gas the resin and when that was done, they re-pressurized the small tank and pulled a vacuum in the main tank and poured the resin into a funnel on top of the tank. When the main tank reached full vac, they opened the funnel, which was attached to a tube that led into the inlet vent on the mold, and the vacuum sucked the resin in. When it kicked they would take the mold out and post-cure for X hours in an oven. The molds were stored in the oven as well to maintain a constant temp. Epoxy is funny that way. Very tempermental. But you couldn't argue with the results. Flawless castings, even clear and translucent parts. Neat technology.
As promised, here's some progress shots. Still lots of uniform detail left to do, and soles for his boots, but it's coming along nicely.
http://www.geocities.com/plymonkey/new1.jpg
http://www.geocities.com/plymonkey/new2.jpg
http://www.geocities.com/plymonkey/new3.jpg