Hi Jasmine
My hubby is a cabinet maker, hes made a few tank cabinets, Rimu. Depending on what way you are going with filtration, the tank stand would need to accomodate.
Not sure what you are using as tank stand materials.. solid timber, just steel frame with surround of some sort?
Keep in mind that if you decide to go sump , you will need a lid of some sort.. my hubby made a beautiful Rimu stand for someone and they didn't put a lid on it and the water sprayed all up the insides of the tank stand and of course, the heat and moisture, you can imagine what it did to the timber! Wood moves something terrible!
Holes in the back of the cladding on the tank stand is obviously needed for hosing etc.. and a decent height is also a good option, gives you room to play with, enough clearance for getting into fiddle with sump and externals, whichever way you decide to go
Sometimes people have a steel structure inside tank stand for extra strength, if you go with a rocky African tank, this is a good idea.
Can't wait to see your progress when you start set up