I recommend not bothering with a sandblast cabinet, unless you have a huge compressor.
These are hugely air hungry, and at a minimum for a media cabinet of the size of the one linked to, you would need a compressor with FAD of circa 30 CFM minimum for it to operate correctly.
Apart from anything else, they take up a huge amount of space, are rarely used, and they won't be man enough to decraminate the upper rear arms for instance.
You would be better off taking them to a shotblaster, and enjoy the cathartic effect of painting the freshly blasted arms
Brian