any ideas on ballpark what i should expect to pay for the following?? :

(1) 30 x 18 x 3/8 tempered
(2) 30-3/8 x 24-3/8 x 3/8
(2) 18-3/8 x 24-3/8 x 3/8

i have decided that my next aquarium, i am gonna build one myself