We also have two wooden ones being made, so will have homes for eight BTS soon with room to expand.
It's very exciting, except I filled the one empty enclosure I had before it was even set up.
I've been asked to take in an IJ for a while, as the girl who sold / gave us Kira and Jaxi has had some rough times and need a good home for her last bluey. I have agreed to take it for 6-12 months and we will see after that if she can get back on her feet and take him back. Otherwise, I'll sell him as an IJ doesn't fit into the breeding plans at all.
Anyways, on to pictures:
Northerns on aspen, Meraukes on cypress mulch except for Simon who is still on paper towel as his feet aren't 100% healed.
I was so excited to expand the collection and buy new stuff to decorate new, larger enclosures.... but then I found out that I've already purchased more than enough to decorate all six with stuff to spare.
I even have the IJs enclosure all decorated and we don't even have him yet! She was going to give him to me with all his stuff, but I said not to bother. No wonder the BF thinks I'm crazy!
So the one empty enclosure really didn't last long! But Simon should have a lovely GF. 
I was worried about that too. It has been a slow process. First, only one BTS. Then only two... then no more than three. I was quite concerned this weekend when it suddenly went from five to seven, luckily the BF loves me! 
Maybe Canasta will come here for a little bit to see if she will breed. Now the new IJ is only temporary, but I'm serious about that - I need the space for Northerns and Meraukes!!