While building my sump I found a great source to buy acrylic sheets. Len's Ace Hardware in Addison will cut custom sizes of acrylic(They call it plexiglass). They do the cutting on the spot and in my opinion do it for a good price. I bought several 8 inch x 12 inch, quarter inch thick sheets of plexiglass for around 4 or 5 dollars a sheet. I just wanted to spread the word about my findings in case it may help out a fellow hobbyist.