I de-cased a PC monitor...same concept. The biggest issue you will encounter is how to mount the chassis. In many TVs/PC Monitors, the chassis is attached to the plastic casing, when you destroy that, you will have to come up with a place to mount the chassis close enough to the tube so that everything reaches.
I was luck enough to find a monitor with a METAL BOTTOM. When I pulled the case off it, the seperate metal bottom is where the chassis was attached to...I then attached the metal bottom to the mounting bracket I used for the PC monitor tube (which I took off an Electrohome G07 13" frame).
I first attempted to fit a 17" monitor in the cocktail I had, but failed miserably (just a hair too big)...which was probably a blessing as the chassis WAS attached to the plastic case and when I pulled it off, I would have had to devise a way to attach the chassis to SOMETHING and yet still be close enough for everything to reach. When I decased the 15" PC monitor I had (that fits nicely), I lucked out with the metal bottom part.
All safety precautions apply to PC Monitors and TV's as they do arcade monitors. Either avoid the anode or discharge.
PS: anyone want a 17" PC monitor chassis and tube decased?