Getting monitors in and out of Nintendo cabinets is super easy. Much nicer than many others (Gorf comes to mind.). Just be sure that you remove the power cable from all the ties before trying to lift the monitor out - best to coil it up and stick it in the chassis somewhere lest it catch on the monitor shelf as you're pulling the monitor out.
Also, word of warning. That power cable looks just like a regular cord that would plug into a wall socket... DON'T! The Sanyo monitor (like most arcade monitors) requires an isolation transformer. Moreover, the Sanyo runs on 100v, not 120v. So only use the it with the Nintendo isolation transformer. Plugging it directly into the wall with destroy lots of parts on the chassis.
-Ian