If you sold that Supra as shown in the pic then there is no way it was making 460hp. Either you must be mistaken or some one fed you the wrong info. And there is no Supra engine code that is called 2jz-gtr.
The black Supra you posted on the 2nd page with OEM maf, stock exhaust is 250whp and 280hp to the crank. WHP is the # that counts in the tuner's world.
How I know this, I can rebuilt a 2jz-gte or 2jz-ge engine with my eyes closed.
avg price for a clean tt 6spd is 20-25k pounds and a good auto tt is a few K less.
So you selling that SUpra for 9k and picking this one for 55 hundred, I call it a bluff.