Welcome back!
Some thoughts:
I honestly feel that a cocktail cab is better served with a smaller monitor. 32" CRT is just too big.
You have to also factor in the curved screen - especially the top as it curves away from your line-of-sight when playing from a seated position. Larger screen makes this worse. The angle at which you see the screen is not great.
Another thing - if you are planning on aligning the screen vertically, presumably so you can enjoy all the vertical shmups, 32" is again too big. Fast moving shooter games require your eyes to continuously scan the entire screen for threats, and a 32" screen is *much* more area (2.5 times) to cover than a 20".
32" CRT TVs typically weigh an imperial ---steaming pile of meadow muffin----ton, so you might want to factor in that extra weight too.
IMO, you don't want any CRT larger than a 20-21" in a cocktail cab. That is already larger than most original cocktails. I'd go further and say that you don't need a CRT larger than 29" for *any* cab (this is the size of the CRTs in Japanese Astrocabs/Candy cabs). Bigger isn't always better, smaller cabs/smaller screens are often a better "fit" for the need.
I'd keep the 32" as-is, maybe dedicate it to console gaming in a lounge room setting. Maybe for driving games, or watching anime. Play while seated. You can buy remote arcade control panels too, or make them yourself if you are really keen. Sure, build a cab too, but find a smaller 20" - 29" for it.
As for the metal "ears" - yes they should be strong enough, after all they have already been supporting the TV inside the plastic case. The challenge would be to make the wooden frame strong enough.