Thanks for the comments. PCRR/Dave: I like your cookie-cutter trestles...but I actually need the extra display space for accessories so I will probably use the full additional level and add illumination to the sub level. Bob: 2" gauge track is scarce and was only made in two diameters as far as i know: 40" and 80" ...so I don' think it would be practical, maybe impossible, to add a loop to the SGMA setup.
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