help with choices

Hello well im wanting to get pocke a bigger tank im tired of his smaller tank and wanting to give him alot of room to climb and play around. I thought about Cages by Design but they are so much money. Im wanting a tank that is not just long but kinda taller he likes to climb. What is my options or should i have someone build me one? Or should i get a basic cage and set it up the way i need it?

One thing I did awhile back to make a enclosure was to taken 2 40gal breader tanks and stack them on top of each other like this:

Remove the glass from the bottom of the tank to be placed on top. Stack the tanks together and attach them together with a hinge on the back side so that the top tank can be flipped open to make cleaning easier.

have any pics?