I use a hammockgear quilt, but they are around $200. It works fine with a singlenest. My other quilt is a kick-***-quilt I made (but arrowhead equipment sells them. Theirs are synthetic, so they dont squash down as small. They are cheaper, though. Mine has the hennessy tie-outs
I use the hennessy hammock hex fly with my Eno. I think I got it for $75 off amazon. You have to rig a tarp ridgeline, but you can just use some paracord between two trees.
As to how to rig a ridgeline on an Eno, there are plenty of youtube videos. Just do a search. The way I figured it out was when replacing the suspension, just tie the ridgeline onto the loop in the suspension. If you use an adjustable ridge line from one of the cottage vendors, its even easier, just put the ridge line loop on the suspension line when you stick the suspension line through the channel.