Clearly it is close enough and you can move it. I'm sure the price is reasonable because how many ig owners are close enough to do it. Most of them will buy a "cage" and a year later whin the ig is dead will get another pet.
This is a nice well thought out enclosure commisioned by a knowledgable caring pet owner. That looks like a serious habitat with good design.
You have kept your iguana long enough that I think you are doing it right.
Don't blow it.
On a mission from God (Blues Brothers).