Tegu Enclosure Build Tips

I’m interested in getting an Argentine BW tegu within the next few years.
I’ve got all the info together for diet, humidity, all that.

But buying an enclosure large enough for one seems less cost efficient than building your own, unless someone can show me otherwise of course!
Has anyone build their own large (preferrably wood based) low and long enclosure for a reptile (tegu, or boa would probably be similar in size needs) and could give me some tips?