Just finished building in the TX2 AIO case. All in all, one of the smallest M-ATX case I've seen. Think of a shoe box for male size 11 boots, but made of aluminum artfully crafted with skyslot holes, with which I've crammed in some of the most demanding components.
Case: TX2 (or maybe TX3?) AIO
Dimensions: 11.5" x 12.2" x 6.2" (~14.25L) (292.1mm x 310mm x 157.5mm)
CPU: AMD Threadripper 2950X (16 cores PBO to 4.0 Ghz)
Motherboard: Asrock X399M Taichi
AIO Cooler: ID-COOLING ZOOMFLOW 240
+ two x Noctua NF-A12x25
Ram: G-Skill Sniper X series F4-3200C16D-32GSXKB
overclocked to 3400Mhz 16-18-19-36 (get new if you buy this, the new Hynix CJR dies are really good for Ryzen)
GPU: ASUS Turbo 1080ti
Storage: M.2 Samsung P961 1TB
U.2 Samsung PM983 3.84TB
U.2 Intel P3520 2TB
I'll probably do a more in-depth build log at a later date (when I'm not too spent from cable managing/redoing orientations and messing up and redoing again); right now I'm here to describe the experience of this case.
Ordering-shipment-arrival: This is just for those who're also interested (or worried) with the time logistics of such a specific case made to order. I originally inquired to order the TX2 AIO around November 2018, though I didn't get around to fully completing the purchase until January 11, 2019. @sergiiua
was very responsive with update inquiries about where he was in the manufacturing process, from the metal to the painting to the shipment, though this could be because I pestered him every week or so unless he gave a date on when the next update was to be. The case shipped from him on April 18, 2019 and arrived the 27th West Coast of North America. As others have said, do be prepared to wait for the case; this ain't no Amazon Prime next day shipping.
Unboxing-building experience: The package came a soft cardboard box, wrapped in a black plastic bag, with very generous amount of Styrofoam padding and more plastic wrap. I definitely thank @sergiiua
for the packaging; it was so very well packed I didn't see any way it could be damaged during shipment unless Bruce Lee wakes from his grave and one-inch punched it like a box of cereal. In fact, it was so well wrapped, that it took at least half an hour jof stabbing at the plastic bag and tape, following by more jabbing of the case wrapping. The case itself seemed to be a little bigger than the original one posted here: my freshly arrived case was 14.25L, while the original was 12L. The major change was the width which was increased to roughly 157mm instead of 140mm. I actually prefer it this way as my AIO had a little more wiggle room to bend. Also it allowed for a taller pump block with my ID-Cooling Zoomflow 240X being 53mm in height. The biggest challenge was putting in the graphics card. Lots of problems of which I'm too PTSD-ed to describe for now. But after getting it all settled in (after more than 8 hours of building), I have to say it was worth it.