Oh I like the idea to set a date where you can't add/remove stuff!! Good idea!!
I like the unlimited budget, at least for livestock because it reduces disputes, and because I want to see some stellar nanos with AAA corals in them in the end!!!

I don't mind a hardware budget though...that's kinda fun to stick to a budget.
I also like Ron 99's suggestion of categories:
1. Stock tanks with a budget
2. Stock tanks with unlimited budget
3. Custom tanks with a budget
2. Custom tanks with unlimited budget
Of course I still think all categories should be limited to 20 gallon display which seems to be the general consenus on here anyway.
Take my opinion with a grain of salt (har har) as I'm not sure if I will have the space (in the house) to participate.