Thanks to all!
I appreciate the help, everyone. After some thought, I decided that I'll go ahead and rig in one color, and perhaps color-code the cleats instead... some colored vinyl should do the trick. As for single-handing, well, it's such a small boat that I think it will work out regardless (so many stories here have shown that single-handing isn't nearly as difficult as I first though). So I will probably just start sailing, and see what ideas develop.
Great to hear from you all, and I'm looking forward to more of the same!