For sleeving, gotta go with the right tools. I got most of my stuff from Lutro0Customs - all my Paracord, crimper, sleeving tool, pin removal tools, his custom wire and some of my connectors. Got my ATX pins, other connectors, new thermal compound and a few other things from PerformancePCS...
BroHamBone - Yeah, as long as your PSU has it's fan facing outwards, you should be fine. Mine is only half exposed (Silverstone ST1000-P) so I called Silverstone support to see if this could be a problem. Joel @ Silverstone told me not to worry about it, that the PSU would get plenty of air...
I've got a RV02-EW - not sure what board and CPU you're running BroHamBone, but I've got a 3770k (de-lidded with CLU), UD5H and H220. My temps @ idle are upper 20's (ambient 22-23) and my full load temps are upper 60's.
The H220 is a great option for cooling if you're not going full custom...