it looks to me like a homemade job.
the bridge and vibrato system are cheaper knock off stuffs, the body and pickguard look like older harmoney copied stuff, and the neck is probly a legit fender strat neck just stuck onto the body. as far as a company ACTUALLY making good fender repros with a fender look a like decal, thats just not going to happen, hasn't happened since the 70's when fender and gibson both spent millions attacking companies like ibanez that were copying there stuff.
hang around on ebay, jagstang are always selling on there, and i have seen them on craigslist, few and far between, but they are there.
you may be better off getting someone to make you a custom cut body, and a mustang neck, getting it all made up to your specs, seeing as how most folks can't get along with there jag-stang as it is.