Those are perfect. The tube size is just slightly larger than a standard 19" arcade monitor and a standard 19" bezel fits up to it fairly well.
They DO tend to poke out of the back of most cabinets just slightly when you replace a standard 19" arcade monitor with one of them.
I have one in my "Galaga" mini (which pokes WAY out the back because that cabinet originally came with a frameless 19" tube, that only had a half inch clearance to begin with).
I also have one in my Defender cabinet, sticks out about an inch.
Finally, I used one in the recent Donkey-Tron (Frogger style cabinet), that I made for a customer, sticks out a half inch in back.
I usually mount them this way. set the monitor on the "shelf", take the back metal cover off, run six screws through the bottom of the monitor enclosure (through the shelf), and then put the cover back on.