Grey metallic is a factory colour, it may have just been the case he was pointing out the lack of decals/badging on the car.
If you look on the build plate (in the frunk hiding on the front side panel) you should find the paint code is 167.
I can't spot anything else that's non-factory. Your rear bumper gap looks like it's been taken off and poorly put back on, or hiding some fixed repairwork, so might be worth looking at it, could be nothing though.
Also the factory steering wheels are heavy, so the wheel it has on there probably feels a lot better to drive. I'd just replace it with something that's not Super Cheap Auto spec. You might find you need one with a padded centre for roadworthy.
You're also missing the original gearstick boot, these are really hard to find original Toyota ones, you should be able to find a better aftermarket one that screws up to the plate that's left exposed in the pics though. Some pics of the engine bay, frunk and boot we might find a few trim pieces you are missing, if it matters to you.
Otherwise best of luck with the roadworthy!