The cactus juice chamber looks to be a nice rig for the money. The only issue with vacuum stabilizing is that certain woods do not easily accept the resin. For woods that do, it's a pretty easy & very effective process. With the cactus juice chamber, toaster oven, & typical automotive maintenance vacuum pump, a guy can be set up for a few hundred bucks. I built my chamber before any were available to buy, and have maybe $100 in it. With a Harbor Freight vacuum pump & Sam's Club toaster oven, I'm less than $500 deep into the rig. I have been through about six gallons of resin thus far and have had wonderful success stabilizing burls and spalted/half rotted woods that would otherwise be of no use in a cue.
Here's some woods I have stabilized for cues, all of which were too unstable or too soft before stabilization. I commonly cuts woods like this & have loads of it. If not for stabilizing, they'd never be useable in a cue. After stabilizing, I have no worry at all using them.