Replacing Screen Mesh with Glass

[Deft-Tech]

i have an Exo Terra 36x18x24 Terrarium, i'm looking to remove the metal screen mesh and replace it with glass, my question is about Oxygen.

Since i'll be sealing the top screen with glass to keep the humidity at the desired level. i'm worried about whether my snake will have enough oxygen, there will still be the vents below the glass doors but like i said i'll be closing off the top.

I have a couple live plants and moss in the terrarium as well as a Misting system. also i have a little aquarium section in the terrarium as well with plants in it and a water filter.

I'm wondering if my snake will be provided enough oxygen from the vents at the bottom, the plants and moss, or should i ask to drill a couple holes in the glass for more air flow for oxygen.