Neil,
you should have used:
https://www.newegg.com/Product/Prod...34&cm_re=THIN_MINI_ITX-_-13-132-834-_-Product
has your SSD support.
I would never have used a power brick, but that is your call.
I would have tried to fit this ps in:
http://www.hd-plex.com/HDPLEX-Internal-160W-AC-DC-Adapter-with-Active-PFC-and-19VDC-Output.html
or a linear. There are other accessories on this site that may be of interest to you.
I just finished an Aluminum (rose gold) Luna Designs machine with a Asus Q87t using and I5 with Sierra 10.12.3. Temps are little higher as it has a MSATA and a full size SSD both Samsung with Windows and Mac. no Wifi as slots are shared. New build coming with HDplex H1.S using Q110T will have M.2 SSD regular SSD and Wifi. Plan is to have it in the TV room for use on the Samsung UHD TV. If I can get HDMI audio to work on Mac side.
Compatible Power brick crap for small form factor boards.
Maker Model P/N Wattage Voltage
Liteon PA-1231-66HP 230W 19V
Seasonic SSA-0901-19 120W 19V
Seasonic SSA-1201-19 90W 19V
Bestec BT-AG121EBF 120W 19V
Bestec NA9002WBB 90W 19V
Bestec NA6501WB 65W 19V
FSP FSP135-ABAN2 135W 19V (C14)
FSP FSP135-ABBN2 135W 19V (C6)
FSP FSP135-ABCN2 135W 19V (C8)
FSP FSP120-ABAN2 120W 19V (C14)
Maker Model P/N Wattage Voltage
FSP FSP120-ABBN2 120W 19V (C6)
FSP FSP120-ABCN2 120W 19V (C8)
FSP FSP090-DIEBN2 90W 19V (C6)
FSP FSP090-DIECN2 90W 19V (C8)
FSP FSP090-ABAN2 90W 19V (C14)
FSP FSP090-ABBN2 90W 19V (C6)
FSP FSP065-REBN2 65W 19V (C6)
FSP FSP065-RECN2 65W 19V (C8)
FSP FSP065-RSCN1 65W 19V (Slim type C8)
FSP FSP065-10AADA 65W 19V (wall mount type,
exchangeable plug- US/
EU plug)
Mainstream Desktop Board
Power Connector
Standard 19V Connector
Intel® Core™ Based Boards
Standard 19V Connector
Intel® Atom™ Based Boards