Sorry to be bearer of bad news.. that feather pattern is common on miscellaneous chicks & doesn't have anything to do with mottling. They eventually lose the white edging as they grow. I don't think that one will be red though.. either buff or possibly mostly white if she's silver.. am wondering if her extra light down may be indicator of silver.
Mottling has shown up in a few hatchery stock turkens.. they are very beautiful. personally have never been so lucky but there are a couple pictures somewhere on this forum, possibly even on this thread?
I have not raised very many mottleds, from reading around it appears mottling often is not obvious on a chick until relatively well feathered out, and become much more distinctly mottled once they finally molt out to adult plumage. There's some variation too, some mottleds turn out more or less penguin colored- chest feathers coming out white with rest mosly solid colored.
Here's hoping that chick will eventually turn out mottled for you anyways!