Having a closer look at the lens mount, it appears to be very close to the FE, not FE2. There is a flip up lever which would allow the fitting of the non AI lenses, which would put it on a par with the FE and F3 bodies.
That looks to me like the AI tab - not flip-up like the FE or the F3 but I can't be sure. Flip-up would be way cool.
This looks like the somewhat generic Cosina SLR platform. But...the layout of the camera may be dependent on the Copal shutter, and its requirements for placement of shutter speed dial and shutter release.
I seem to remember a Pop Photo or Shutterbug article from a few years back re: the Vivitar 3800 and the Phoenix P3000. The Vivitar was based on the FM10 body and the Phoenix on the manual Minolta (which the Japanese had jobbed out to the Chinese to manufacture). I bought the Vivitar with a 35-80mm Zoom for Number Two daughter and was impressed by the heft and feel of the thing. For $150, it was a damned good deal. Had a nifty accessory that divided the frame during multiple exposures, too.
This makes sense because it doesn't look like the AI tab flips up. If this isn't another Cosina body it is certainly a close copy. I would rather use a Nikkormat if its top speed of 1/1000 is high enough. There are plenty of Nikkormats around and a $100-$125 overhaul will make one work like new.
Phenix has been building Yashica FX-3 based cameras for quite some time and if you compare it against this against the Cosina chassis you can see there are some differences. Besides, the meter coupling prong does not fold back like the earlier Nikons such as FM and FE, so it is an exclusively Ai camera.
I would agree that the photograph shows a camera which looks very much like certain Vivitar SLR's. Also here in the UK they are sometimes sold as Centon. Usually they have K mounts but I was aware that the Chinese factory produces versions with other mounts.
I've come across several of these Chinese made SLR's (the K mount variety) and they are not very well built. The film advance mechanism and in particular the film advance lever seem to be the weakest spot. There is a tendancy for the wind lever to work loose and for the film not to advance properly. Another weak area is that a couple I've come across failed to turn the battery power off, so if the batteries were left in they drained completely after a day or so.
Some Vivitar SLR cameras have been made by Cosina. The Cosina cameras are much better made than the Chinese ones. Unfortunately quality control is stiill the weak point in Chinese camera manufacture (eg the Seagull TLR's) and anyone getting one of these Kenko cameras should face the fact that it may not have a long life. What the situation is on spares I've no idea but I doubt if there is any commitment to keep them available for 10 years after camera manufacture is discontinued!