I managed to find inexpensive pots finally, (a nursery in Austin was willing to sell me used 4" and one gallon for 5 and 10 cents each!) but pot bottoms cannot be had for love nor money except at garden centers for a not very affordable price!
I'm using styrofoam and/or plastic picnic plates and bowls now. Got them at the grocery store in large packages for a fraction of the price and they hold up well!!!
Hope this hint helps others?
Cheers!