Might as well throw in an update here since I already have for the rest. He's been chill as can be, always curious about goings on.
I have 5x2x2 PVCs on order for him and Hoco, so he'll have more climbing opportunities and more space overall eventually as he always looks cramped while on his nightly forays in his current digs (that 15" height only feels shorter as time goes on).