Ok, I had a good look at this 'impersonator' today and took a few photo's. Though it looks very neat and tidy, it's not a 1600GT and has a few items missing or not right, namely the rostyle centre caps (missing), the original steering wheel (it's fitted with an aftermarket 'sports' steering wheel), no console, 1600 GT instrument cluster is covered in aluminium, rear shelf recovered with no flow through holes, etc.
It looks quite good though some marks (finger prints on the bonnet for one) let the paint work down a little, the body looks pretty straight on both sides, wide Rostyles with 195/70x13 tyres, recovered dash and instrument panels, very nice original low back black seats front and back, carpet very good, parcel shelf fitted, 31125 on the odometer, chassis number is CK14JG56449 which makes it an August 1969 build. As it's not an original 1600GT, I'd say it probably worth around $10-12k mark.