Calling on Eskro…:) or others for upgrade advice

Followed “eskro’s” advice from this post (http://forum.kodi.tv/showthread.php?tid=124856) and did exactly what he said shown below.
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i’g get this build http://forum.xbmc.org/showthread.php?tid=114896

swap the case for the LIAN LI PC-Q08B http://goo.gl/yER0B
and buy this SeaSonic SS-400ET PSU http://ow.ly/1B88Bq
and 2x2GB CORSAIR VENGEANCE RAM http://goo.gl/pFggh

this will do for who
* HDTV possess HDMI ports
* wants to play SD movies (DivX, XviD)
* wants to play DVD movies
* wants to play 720P movies
* wants to play 1080P movies
* wants to stream 1080P Hulu content
* wants to stream 1080P Netflix movies (Windows only)
* wants to Bistream HD-Audio
* wants to play 3D 1080P movies
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Here is what upgraded to: “Dark base pro 900”
https://www.amazon.com/gp/product/B01H6J…UTF8&psc=1

Here are my issues:
Performance is fine, size/space was issue with small box and fat fingers. So now I have 1 more slot for hard drive (and could expand 1-2 more) but no more SATA slots with current hardware…Didn’t realize it till swapped hardware from old case to new Dark base pro 900 case. As it stands it is just really a case swap but now I was thinking of adding another hard drive.

1) Since I am using the PCI slot for add on card with 2 SATA connections do PCI add-on cards with 4 SATA connections exist?
2) I previously had only 2 fans in old case, now I have 3 fans with option for MANY more but I am limited on motherboard with fan pin connectors for just 2? upgrade motherboard? other options?
3) If upgrade then what parts can transfer over vs what would need upgrading? I would prefer to NOT upgrade motherboard/cpu/ram given performance was perfectly fine.
4) Really looking to make more fans work and add 1 more hard drive with option for 1-2 more down road…

Appreciate all advice….

Go team “Kodi kicks ass”!