Ok one other suggestion that you might want to try or might not. I have a friend who built his stand for a 95 gallon. After he built it he did the coolest thing, and it worked out great. Instead of nailing the sides on and making doors, he got some laminant ( very thing and light weight ) cut it to size and attached it with industrial velcro. Since he did all three sides, the corners matched up great, honestly you couldn't even tell that it was on there with velcro. The advantage of course being he has -- total -- access to his stand.
Just something to toss around, you could always give it a try, you wouldn't be out much money at all.