Ditch the stock rope and 'biner. The 'biner gate has sharp "teeth" that can damage your hammock. I have a strong preference for the suspension described by JustJeff in his stickied Crazy Creek thread. Those buckles are currently available from onrope1.com. Stu, at whoopieslings.com can fix you up with everything else you need.
I'm not a fan of big box store solutions, because you're never sure of what you're getting. What you can be sure of is, none of the stuff they sell is rated for life support. Buy once, and get the right stuff.