I don't know what you ultimately decided, but I know a little about gold sex links. I have gold sex links bought from the local feed store. I read about them (on BYC) and it seems they are a hybrid from crossing a Rhode Island Red with a Rhode Island White. It's definitely easy to tell which are females or males. Females have brown stripes and male are completely yellow. Roosters turn mostly white while the hens will be brown. My hens look a lot like the Rhode Island Red.
Mine started laying at 4 months old (in the middle of an unusually cold Texas winter). By April all 10 were laying one brown egg a day. They are very gentle, come running for treats, and I can never walk through the fenced area without having several curious chickens underfoot. I have sold a few dozen "hatching eggs" via Craigslist, so people must like this breed, especially for the beautiful colors of the rooster (splotches of gold and dark brown feathers on mostly white). The eggs for eating go pretty fast at the farmers market for $3 a dozen (in a poor country town).
Thanks for letting me know that Ideal Hatchery has them. I was told to get them from Murray McMurray, but they aren't even listed in their catalog!