I am looking for where I can buy a set of "stackable
trays" where I put one on top of the other, and have space in the bottom
one for putting in my hydroponics water fluid?

I would then add in a pump system to the bottom to create an
ebb/flow system.

I am looking for something that is just like the old baby
bloomer system that is no longer made, but can make it myself. I just need the right trays.

Here is the baby bloomer system. See the first page. I want two trays that stack like shown:

http://www.hayneedle.com/images/pdf/SRL008.pdf

Any idea where I can get a set of trays like this that i can
use?

Just need some solid trays... probably 3 feet long and 1
foot wide or so, but they must have a "lip" in the trays where you
can stack them. And there must be enough
room in the bottom tray to hold a reservoir of hydroponics solution.

Thanks.

Michael