The Fractal Design Define 7XL along with some accessories will get you to 15x drives.
https://www.fractal-design.com/products/cases/define/define-7-xl/Black/
https://www.fractal-design.com/products/accessories/mounting/hdd-kit-type-b-2-pack/black/...
For Sale: Prototype mini-ITX and micro-ATX case frames.
The mini-ITX frame includes a Danger Den 3-slot IO bracket, for $65, plus whatever the shipping charge is from Washington State.
PayPal only.
The frame measures 13-3/8 x 10 x 8-1/2-inches (D x W x H). A 120mm fan will fit at the back of...
(4) CONSOLIDATE Threads. Do not post multiple threads, keep all your FS/FT deals in one thread, and all WTB/WTTF deals in a different thread. You should only have one FS/FT and one WTB/WTTF thread active at any one time. When making a new thread, include items from the old thread.
I only realized after cutting the left side panel that the two fan hole cutouts were - um, ugly. So, I remounted that sheet to the inside of the case and cut another solid sheet, thus creating a bottom fed air duct to keep the GPU nice and cool.
:cool: