I would ditch the metal screen and install a vent on the back instead. Depending on the space in the door, you may not even need any additional ventilation. Regardless, top-venting isn't the way to go. The size is more than fine for even the largest adult, you may lose a baby in it though. Usually it's easiest to work your way up in size. The height may not be used. Some boas will climb, others will not. If you do not intend on providing climbing branches however, that much height is definite overkill.
Depending on what materials you use, you could probably build it for as little as $80 - $100.
|