Hardware for Storage and VM with GPU accelerated encoding

Hi all,

Looking for suggestions on an unraid build. I ran unraid a few years ago when it did not have the features it does today mainly recoding to it and as a home server. Today needs have changed. I started out thinking I could use the hardware I had which is a 3U case, Supermicro X9SCL/X9SCM Motherboard, Intel® Xeon® CPU E31245 @ 3.30GHz, 32GB Ram. What I want to do is backup my Synology box which I am using for Plex and the mobile apps and also to run VM's - I am particularly interested in running a VM that can run Davinci Resolve and encode projects, I have also been doing some stuff with Blender but have not gotten to rendering much yet - I don't care if it encodes super fast just that it can encode - even it is an overnight run type thing, editing is done on my main system and my current setup above is fast enough I can edit over my home network but when I installed the windows 10 VM it is sluggish and Resolve needs a GPU to work at all. I do have some gaming components lying around like an Asus MB with a core i7 7700k and 16GB, GTX770 and I also have a GTX1060 I could use but not sure if those will do the trick, the 770 might not fit the case. I also have another similar setup as I had 2 servers but the second has a slower XEON on the downside but can take I think up to 128GB ram - both were from the more or less same time period.

So the goal is pretty simple (I think) - an unRaid server that I can backup my synology box to and that can run VM's snappy enough to open and render projects, even if it renders them slow as that will free up my PC - that is if this goal even makes sense.

Thanks for any thoughts / suggestions.