Well, I'm still shrinking my plan to make the boss happy. Narrower the better I'm learning. I'm down to 15" shelves, but I think that's still ok space for HO. So here's the latest "plan"(unfinished), along with the last one that had the return loop.( the loop had to go) The long wall at the top will be the only one that is sceniced. I'd like some input on how to interchange the SAL and the SOU. Also any advise or ideas for filling in the blank spot would be great.