The beauty of a boaphile cage is it already has limited ventilation which is my number one recommendation to maintain humidity. The only ventilation is the gap around the door.
That with a nice substrate, a damp moss hide box and large water dish should work great!!
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Thanks,
Dave Colling
www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count (02/01/2010):
42.61 BRB
27.40 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 
