Actually, the cab problem might just be dealt with by now. Have a look at https://www.etsy.com/shop/CaseFromLake Case From Lake is probably the best thing going in portable cases right now. They do custom mods (including odd-length rows, tile rows in either format, and so on) and they're BONKERS on power systems, with beefy Meanwells or the Doepfer A-100 supplies...whichever you'd like. Many of their systems fold up to the right size to qualify as carry-on baggage. Now THAT would be reasonable enough so that you COULD go to a larger cab, but still be able to tote it around.