So here are some pics and a few notes on what I have built thus far for the stand:
My saw and the lumber that has been cut for the stand
One note when starting a project like this, it is always a good idea to square your lumber. What I mean is cut about 1/8" off the end of the wood you are working with to get a true edge. I always do this to keep things nice and square. It also helps to make sure that the lumber you are working with is straight and has little crown.
Plans I drew up last night and have been working from. This is not the first cabinet I have built so these were just a reference for me to go by.
Another very important tip, drill pilot holes for your screws when putting together forms. This will reduce the likelihood of splitting your lumber.
Here is the bottom of the stand. This measures 38"x19". I used 1"x4" stock to build this. Actual measurements are 3/4"x 3 1/2". The bottom edge of the base of the stand is elevated 2" off the bottom of the legs. I did this to allow for arcs to be cut in the base trim on the front and sides. You will see what I mean further down.
Here you see the base attached to the legs. Again this is 2" off the "ground". The legs are 36 1/2" tall. Overall stand height will be about 41".
Here you see the legs attached to the base and the top. These forms are intended to carry the load of the tanks. The base/bottom has a center support that was added after the decking was put down. I'm not as concerned with having the center support on the top as the tank will span the distance between the 2x4s.