At Harbor Freight, you can purchase a blast cabinet relatively inexpensive. When I purchased mine, it was $149. Although the cabinet is nice the way it is, it was a bit lacking and needed some "improvements" to suit my needs.

I put the base together to be able to get the perimeter of the cabinet, and then created a hinge frame to mount the top of the cabinet onto (the black strip in the center of my cabinet). Hydraulic hood supports were added to help raise and lower the cabinet top. This center section added a few inches to the height to make it more comfortable to work at, while allowing me to load the part into the cabinet from the front. This easy loading feature saves a back when the part your cleaning is heavy.

There were a bunch of other modifications that I made as well. Every joint was caulked to prevent media from coming out of the cabinet where it is not supposed to. The plexiglass window was replaced with glass to reduce static. The 12 volt fluorescent light was replaced with a couple of LED bulbs. The door that came with the cabinet has these "craters" molded in. This dumps media onto the floor every time the door opens. All of the "craters" were covered with Gorilla tape and that took care of any future mess by making the door smooth. A copper tube was mounted next to the media pickup tube to allow the media to be vented and allowing for a more steady flow of media through the gun. Lastly, a shop vacuum was added to the ambient exhaust port to keep the dust out of the cabinet while I am working. (It is nice to see the part that you are cleaning without a cloud hiding the part)

All of these new added features makes this cabinet operate as well as (if not better than) some expensive cabinets.

An inexpensive blast cabinet with expensive features