Quick update:
I didn't get the one I wanted, but it will work as a storage server only if vm's slows it down too much, but I think it will be just fine for my usage.
Just starting it up for the first time was worth the price, so I will not complain.
• (1) - SUPERMICRO CSE-847 36-BAY 4U CHASIS SERVER
• (1) - SUPERMICRO X8DTI MOTHERBOARD
• (2) - INTEL XEON QUAD CORE E5620 2.4GHZ LGA1366 CPU PROCESSOR E-5620 2.4 2.40GHZ LGA 1366
• (6) - SAMSUNG 4GB PC3-10600 DDR3-1333MHZ ECC REG CL9 240-PIN DIMM DUAL RANK MEMORY M393B5170FH0-CH9
• (1) - ADAPTEC RAID 5805Z 2266900-R SATA/SAS 8 INTERNAL PORTS W/ 512MB CACHE MEM CONTROLLER CARD
• (1) - SUPERMICRO BACKPLANE BPN-SAS2-846EL
• (1) - INTEL E1G44ET2BLK GIGABIT ET2 QUAD PORT SERVER ADAPTER 10/100/1000MBPS PCI-EXPRESS 4 X RJ45
• (2) - SUPERMICRO PWS-1K41P-1R 24PIN 1400W 1U SERVER POWER SUPPLY PSU 80PLUS GOLD
• (36) - HARD DRIVE HDD CADDYS
Took about a month or so to get it to Norway.
Jetcarrier was really easy to work with, and their support worked great.
Had a lot of downtime, so things gets done when they do.
I forgot to check if the screws for the caddy was included, so had to order them separate.
Each ebay purchase takes a couple of weeks to a month to be delivered, so time flies.
I have replaced the Adaptec Raid card with one IBM1015 in IT-mode - only to find the SAS connectors are at the top of the 1015 card and on the back of the Adaptec. So I need two cables with 90 degree angle to avoid hitting the lid.
Is it ok to buy
china-cables for this?
Was thinking of mounting 2 x SSDs as OS drives under the mainboard - and a couple hotswap SSDs for VMs in mirror or raidz2.
Also bought some Dell adapters for the 3.5 > 2.5 caddy.
Regarding disks; I found even more 4tb external drives in a box when I made my house puppy-proof, so I'm close to filling it with my current drives.
I have an old sound-proof(-ish) Rittal rack, so the rails I bought did not fit at all (2U-5U Rail Kit CSE-847 MCP-290-00058-0N) in the frame.
I know I read about them here, but I have not been able to find a pair of old-style rails for this rack.
If I'm not able to get old-style rails for it, it just might be cheaper to get a new frame for my Rittal - or make something myself.
We've had 5 or 6 power outtages in my area in December, so I don't dare to try zfs until my ups is back up and running.
Still alot of reading to do.
Thanks to you all who helped me get started here.