OK I'm getting ready to begin the construction of a stand and canopy for my 75RR and was wanting your opinions. The stand will be constructed of a 2x4 frame that will be skinned with oak, so the frame will be supporting the weight of the tank. My question to you all is should I place a piece of plywood or oak on the top to help tie it all in together or just leave it open. I know the AGA stands do not have a top on them which makes plumbing them very easy. However I like the thought of extra rigidity (is that a word?) that the top would provide. Your thoughts?