It's still winter, but my father and I are building my Russian tortoise a 10' x 10' enclosure come this spring. He works at our town's lumber/ furniture company and said he will be able to get a lot of wood cheap (he built my hermann's 4'x2' enclosure for $15). But I want a "worst case" scenario. So what are the things I will need to build the enclosure? And if a price is known that would be great. We are also still trying to figure out how to build a door for a huge enclosure like that, because we have 3 dogs and tons of outside cats in our neighborhood. I think the nights stay warm enough in the summer (55f) for my Russian to stay out in good weather, so I want to build a lock/night box. I tried looking up instructions on how to build one but couldn't find specific details. Any help or knowledge on any of this would be great in helping my Russian getting a great enclosure.