Poweredge R730XD Cleaning and/or Disassembly Recommendations

Hello!

So I placed a bid on an R730XD-24SFF a week or so ago and kind of forgot about it. I guess I won it for $1.69 + S/H. It came in the mail today, and It was sold "as is - for parts". The description for it was very different from the pictures, I think the seller just copied the R730 description from the Dell product page. But, the ram alone would have been worth more than what I paid. I saw that there were 16 sticks, and at a minimum would have been 64gb. Everything is there and intact visually except 1 PSU. It came with 6 enterprise sas drives, 2 enterprise ssd's, 12 caddys + 12 blanks, 256gb ram, H730P, 1 750W PSU, and I'm not sure of the CPU just yet.

Anyway, I was taking inventory and noticed that this thing is not just dusty, it's dirty! There's no water damage or rust that I've found yet, and the caps look good. Is there a best practices method for cleaning the hard drive bay and connectors? Should I take it apart, if that's possible? Or just get in there with ESD brushes and isopropl/water mix? The drive bay is the worst of everything, the rest is just dusty it looks like. But, the whole server needs to be cleaned, and I'm not sure if I should just take the whole thing apart. I wasn't going to just plug it in and test it out.

Here is a picture of the drive bay:

I know, carpet is bad.. but, I wear an ESD strap and ground myself when working on anything away from my work table, and my work table has an ESD mat.

Thoughts?