consider a good used industrial cabinet
I picked up a used industrial-quality bead/abrasive blasting cabinet (made by Dee-Blast) about 2 years ago from a local machinery dealer. It was not cheap at about $650 used, but I sure am glad I spent the extra money versus the cheap-junk offerings from Horrible Freight, or the automotive supply places, or such.
After a couple years use, I would not be without it.
It is ruggedly built, has good built-in lighting, and decent access for loading parts thru a large side-opening door. I like the side door for heavy parts--do not have to lift things so high. It also has the real life-saver, IMHO, that being a very effective dust exhauster/filter system built-in. You can blast all day and not have problems with dust obscuring your view of the work, unlike many cheapo units. Dust obscuration is a real annoyance and slows things down a lot. I also note that the garage stays clean due to the effectiveness of the filter bags. They have not required any maintenance since I bought the unit.
Expect that any bead blasting cabinet will require maintenance/replacement parts. The most frequent need is replacing the ceramic or hardened steel nozzle inside the blast gun. The glove box gloves will eventually need replacement.
The bigger issue with a bead blasting cabinet is air usage. If you think that 10 CFM is adequate, think again. Yea, you might be able to get away with that, but progress will be painfully slow. Bigger really is better here. When I purchased my cabinet, the gun supplied had a small nozzle installed, that did not require much air. It worked, sort of, but progress was slow. I had to replace it due to wear and wound up with a larger nozzle. That was a revelation. WOW. That sucker will really strip rust fast now. Mine requires something on the order of 15+ CFM, which means a REAL 5HP compressor at an absolute minimum. By real, I mean rated 5HP continuous duty. Anything less will suffer a quick death.
Be sure to use the search feature on the forum here to see the very informative post by Forrest Addy about the ins and outs of buying air compressors. That is a true mine-field for the unwary. I am looking for a suitable, locally available, upgrade to my existing Sears Crapsman air compressor.
Media. Glass beads are the closest thing to a universal blast media. If you are doing a lot of heavy rust/scale removal, something more aggressive will be the ticket, but don't use it on any softer metals such as aluminum. I am doing a car restoration. Glass beads are a good compromise.
Moisture. Moisture in the air supply is a killer. I built an air distribution system out of 1 inch copper tubing for my garage and have never had a drop of moisture since. Money well spent. Use the serach feature or the internet to research how such a system is layed out (slope, size of lines, drain points, take-offs for air, etc.). There was a web-site with a diagram of this which I copied with excellent results.
Good luck and enjoy.