Agreed...although, the Odessa is potentially worth making room for, given its capabilities. You'd need more modulation sources, as noted...but there ARE ways to get at that without chewing up your space. F'rinstance, Doepfer's got this shrunk-down version of their Quad LFO that fits into only 4 hp. No CV control, but you can jumper those puppies out to 8 minute cycles for nice, Krell-ish slow changes.

DO consider a move to 2 x 104, though. Given the CHEEPNIZ of the Tiptop Mantis and its useful features, that makes for a better beginning cab these days than a 2 x 84. Easily expandable, also.