     Where might I find or commission a pre-made or custom-order a rather fully featured port-expansion hub or dock-like accessory designed to nest neatly underneath a 15-inch MacBook Pro with Touch Bar and Touch ID like the one I plan to order soon?  Specifically, I'm looking for a device with a complement of ports and media slots similar, but not identical, to that found on Sonnet's Echo 15+ Thunderbolt 2 Dock, but which interfaces with the aforementioned laptop using Thunderbolt 3 rather than its predecessor.  Here are the kinds of connectors and slots I would like to have on such a device:  FireWire 400FireWire 800Mini DisplayPort/Thunderbolt 1 and 2USB 3.1 Gen. 2 Type C/Thunderbolt 3 passthroughUSB 3.1 Gen. 2 Type AGigabit EthernetSDSC/-HC/-XC card readerA slot-loading optical drive capable of reading and writing to and from the following formats (basically, the same list of formats as the Sonnet dock I mentioned earlier:)  Bluray Disc (variants:  single- and double-layer BD-Rtriple- and quadruple-layer BD-R XLsingle- and double-layer BD-REtriple- and quadruple-layer BD-RE XLBD-ROM)DVD (variants:  DVD-RAMsingle- and double-layer DVDRDVDRWDVD-ROM)CD (variants:  CD-RCD-RWCD-ROM)The optical drive should support booting from discs as well, as one would probably expect.  In addition, I wouldn't mind also having access to the following additional functionality in such a device:  An internal battery bank for battery lifetime extensionSpace for additional solid-state storageDoes anybody know what kind of place might supply or custom-build such a product to or for me?  
Where to Obtain an Expansive Thunderbolt 3 Port Expander Suitable for Mobile Use With a MacBook Pro w/ Touch Bar and Touch ID?
laptop;hub;thunderbolt