Way more trouble than it would be worth!

I'm shooting myself for spending money on a 20 gallon long with a screen top. While it is secure... keeping humidity up is a real PITA.

If I didn't think my wife would shoot me for wasting money on the tank I'd swith my BP to a tub in a heartbeat!

A tub sized to keep a hatchling BP for a while will cost you $5 and be much easier to upkeep. Just don't forget about heat and a thermostat.