Newbie, Vivarium Build? Help Appreciated!

[cruentusanima]

Alright after a month or so of planning I finally got the build started. So far right now I have the false bottom done but without the mesh laid out and also started working with the Great Stuff foam and created some rocks and also a rock border for my pond to separate the substrate from the water. Here is what I'm thinking so far I'm going to have the pond in the middle with a waterfall and also I'm going to have false bottom sides with Great Stuff molded that way it will be easier to clean if I ever have to. Below is also a drawing of what I'm thinking as far as the complete build, any suggestions would be much appreciated.

Supplies Bought
• Zoo Med 18x18x18 Terrarium
• 2 Sheets of Egg Crate
• Zip Ties
• 2 Cans of Great Stuff
• Acrylic Paint
• Eco Earth
• Zoo Med 501 Canister Filter
• Bark
• 3 – 9.8OZ GE Silicone 2 Window and Door Black
• Weed Block Mesh
• Extra Tubing
• Gravel
• ABG Mix
• Jiffy Pots

Tools Needed So Far
• Cutting Pliers
• Gardening Pruner
• Caulking Gun
• Nitrile Disposable Gloves

Steps to create this not finished project
1. Use silicone to cover the back, left, and right side of glass. (currently curing will update pictures ASAP)
2. Create design with egg crate (shown below)
3. Create foam border and sculpt as necessary (shown below)
4. Create back, left and right egg crate sides (in process will upload when I have molded foam on each side)
5. Work with foam on each side and add Jiffy Pots (will get to do this hopefully by end of week if not the weekend)
6. Route tubing for waterfall (in the works)
7. Blah
8. Blah
9. Blah
10. This project has taken more time out of me than anything I have ever worked on including my car.
11. I need to complete this ASAP since I just bought an Eastern Collard Lizard for my daughter and it needs a new home as well.
12. I have a feeling this will turn out pretty cool.