Hmmm - I'm not sure I even understand all of those words
I was just thinking of slamming two cut pieces of plywood together, glueing the seam and then sanding off any glue that spills out onto the visible side
I don't have a router - in fact basically the tools I have to work with fall into the categories of "hammer," "saw," "drill", "sander" and "glue."
Another possibility - I could see what kind of cabinet doors would fit, then use those as prefab panels and then just frame out the bits in between. I did my 75g stand this way and I think it looks pretty nice - only difference is there I do use the cabinet doors as doors whereas for this tank they would be permanently fixed. the downside is that I'd have to put something in behind like styrofoam or whatever to act as a noise barrier, since there will be a tiny gap of the door sitting on top of the wood it sits on.