That looks awesome and I’ve considered doing this myself but:

1) it‘s super expensive

2) a setup like that may last you maybe 8-16 hours, at best

3) where would you store it all when you’re not using it?

For all of these reasons, I’ve switched to projecting digital maps from an overhead projector connected to my iPad. The benefits are:

1) those projectors are pretty cheap

2) digital maps are cheap, or you can make your own easily, or just quickly google a bunch and use them for free

3) it’s much less set up/transition time going from one area to the next. And you can scroll.

4) I project from Procreate so I can have real time “fog of war” that is revealed as players move around and I can draw my own spell FX on another layer as they cast spells.

5) you can also project those “motion” backgrounds people upload to YouTube - again, for free.

6) dynamically scalable/rotatable and you can turn on/off a battle grid (or project onto one)

7) you can still supplement with real 3D props as much as you want (I have a good selection of those)

8) I can project other things like an NPC character portrait or landscape during story parts to help set the mood.