Doesn't look like any TSC in my area carries the ratchet rake. I guess I may have to order it online and pay the shipping.
Can't you go to TSC's web site and order it on-line for "free" delivery to your closest TSC?
I've heard great things about the RR and the Piranha bar for such jobs, but I have yet to use either of them. I have, however, cleared lots of areas on my property that look similar to yours. I haven't yet found a method that is an acceptable level of work. I usually just end up doing more work than I thought I would/should have, cussing a lot, and promising to come up with a better method. To that end, I'll be following this thread with great interest.