Hi, 

I may be able to help with this.  33 longs seem to have been discontinued for some time, but it is an easy tank to make.  I could potentially build one or more tanks that fit that size profile.

Typically, I will use cheap 1/4" shelf glass, stuff meant for store displays, but it a specific size is needed, I will sometimes custom order some parts, usually the end panels.

It may be possible to source the parts and build them more cheaply than obtaining production 33 longs.

If this is something you are interested in, my phone number is 512 417 5681, my name is Brian.