i don't see why you shouldn't try again, if the female doesn't mind. But wait for a few days, as she might show her gravid coloration a little later. As for how long did my female take to lay her eggs? some clutches has been as long as 45 days, and some as short as 18 days. I ttook about 6 months and 3 weeks for the first baby to hatch. One more of my eggs is hatching and one more sweating currently.
about sites with breeding info...hmm...i really cant recall ever reading any breeding info on websites, but that information is readily available on most chameleon books, and probabaly forums like this one. Jim Nozaki's site has a little bit of info.
It is www.Amazingbluereptiles.com. I'd say you have everythign right so far, just wait for her gravid coloration. Good luck!