SLK uses 5" drive slides, don't they still need to be mounted to the drive w/ screws? IAC, the 3700AMB and others based on the same design (like the Compucase 6A series, mwave.com) are among the best for cooling and quietude. A handful of thumb screws can make them mostly toolless.
. McMaster-Carr.com sells shouldered machine screws and they also sell PVC "Vibration damping Grommets and Bushings" (9311K51, etc.) that are more effective than rubber grommets and PVC fan mounting pins (5801K6, etc.).
. But if your Evercase doesn't come with the isolators, you can order them direct from Evercase in sets of 8, but your case needs to have come with the new design hard drive bracket with the cutouts for them.
. And I was just sitting here thinking what I could use besides nearly $2. each shoulder screws from M-C, and I came up with this idea - #6 brass mobo standoffs (cyberguys.com - they call 'em "coarse")! Ponder it... The "shoulder" would be 1/4" and variable above that using a #6 screw in the top of it and a washer if nec. Thread length is just right for HDs.
.bh.