Need some info on building cage

[Zelera]

OK,I'm looking to build a bigger cage for my B&W tegu that's going to be about 7feet long,2feet wide and about 20inch's high.

I wanted some idea's from people that have build a cage like this before,and what material i could use and how much overall it would cost,and possibly a blueprint is you have one appreciate it

 

[Lexi]

2 feet wide is alittle small...you should make it atleast 3 feet.. and your gonna need atleast a foot of substrate on the bottom of the the cage.