I may possibly be selling a complete Roland 100M Modular Synth System - comprising 23 items (incl. several VCO/VCA/VCFs, 8-step SEQ, RING MOD/NOISE, Mono+Poly KEYBDS, PHASE/DELAY etc.) all mounted in a portable rack unit, plus original manuals and patch cables. What sort of price might this reasonably be expected to fetch ?