Starting with the first pic...
All clone parts I can see...
servo plate
battery cover
ft shocks
muffler can is from a baja
ft cable brakes
red button kill switch (probably a cy)
Second pic
Clutch housing
Tires (king cobra)
Not sure about the wheels, but they don't look like FG
Rear wing (baja)
(rear brakes aren't hooked up)
Last pic.
Roll bar
lower control arms
driveshafts
rear shock tower
Diff sleeve
Diff gear (looks really chewed up, I have 50 gallons on my FG gear and it's not that bad, so I say it's clone too)
rear uprights
With a list that large, I would say it's a Smartech, because the Carson and DTX Firehammer are better quality than that. I would have said HobbyPro Mutilator, but the chassis is tapered and the rear shock tower is different.
Easiest giveaway is the shine of the plastics. FG and Carson are satin or matte finish.
I will guarantee you it's not an FG!
How much is he trying to get out of it?