the second question i had on the iso booth was the door.

i know there is a brand of door that is "the one" to get for sound-lock
purposes.

but i'm looking for something that isn't 350 pounds and doesn't cost
$900.

i'd almost be tempted to use a double-paned sliding glass door if i
could find one that wansn't too huge and had awesome "suction" on the
seals when you close it (preferably making some sort of star trek
"schhhhwit" sound when it closes fully).