I have a green iguana whom I have adopted from a rescue. He has had a rough life and I would like for him to live out the rest of his days in comfort.

At the moment I have him as somewhat of a free roamer in an office of mine. This office (18'X9') has concrete floors and I would like to transform it into his own "lagoon", if you will. Would this be feesible? I was thinking of removing the carpet and using a latex paint on the walls (to help prevent mold). My thoughts are to have a raised platform and reinforcements that would hold a preformed vinyl pond with a filtration system, as well as a 4'X8'X2" rectangular pond on the ground. I am looking to have maybe a small bridge, cat walks, and the standard terrarium stuff like driftwood, and plants. Would I be better off with converting a solarium into this vision? Any resources to obtain large driftwood in Southern California (to save on shipping)?

Any thoughts, or insight about a project like this would be greatly appreciated

Thank you,