If I remember correctly these are pretty solidly made furniture.
It will be holding not only the tank and water but also the substrate weight and stones, along with other things in the tank, as well as the filter, usually a HOB
or small canister. If you are using it for storage of supplies to figure in that weight too.
Nice to be in the planning stages and asking questions to get a solid plan in place before getting livestock.
What is the number one creature you are wanting to get for this tank build? Create your plan for that work around to see how everything else fits into place - or not!
Before I forget, really important! You will need a prefilter or screen to keep out the shrimp from the intake if you are not using a sponge filter.
Substrate can be really important with shrimp. If your shrimp and water are inline with necessary parameters, then you might not need fancy/costly substrate. You may prefer to use that money for the shrimp or decor pieces.
I would not keep Ghost shrimp together with any other shrimp. They are generally aggressive and predatory - do not play nice with other shrimp. So if you would like to see your shrimp population increase, it would generally be better to skip them.
You could always start with them and remove them later when you were ready for other shrimp.
Tangerine Tiger shrimp are awesome and very easy to keep.
Shrimp should be ideally kept in a matured tank maybe 4-6 months of maturing and developing biofilm and aufwuches, tiny things we don't see but the shrimp graze on. Some additives like Bacter AE and other similar "starters/foods" for them to help out.
So decide what you would really like first. You can always change your mind later, but it is hard to remove teeny tiny shrimp from an established tank.
Look at other tanks and see how the shrimp you are thinking of look in there, color of substrate, with mosses, stones and driftwood, etc.
For instance the Blue Velvets seem to blend in with a planted tank with lots of green plants and little DW or stones ( I know because I had that :/) But Tangerine tigers pop on green plants.
White sand causes shrimp to lighten up /to blend in better with their surroundings, not a good thing for you since generally you want them to be brightly colored.
Stones can change the pH to some degree, like Seriyu stone will INCREASE pH.
You can order stone online or get it from "nature" watch out for poisons sprayed around homes for weeds and bugs for instance, or flooded water, toxic residue on driftwood from streams. You would likely know if there were floods or problems with polluted water in recent years in collection areas.