I wouldn't worry to much, technically its not a vltd unless you got the plate thingys (which could have been taken out)
and you engine code chassis code an gearbox code doesn't match the V Ltd car either
I was told that this car was hugely popular at around v2 and they couldn't keep up with demand so its possible your car was assembled as a v ltd but they didn't have the other parts to complete it or its possible the site isn't all that correct
for example my car is a 555 ltd engine an box but the car is a v2 sti non555 gf8 wagon
It will have a td05 turbo id say which is a good turbo an the ej20g are quite a strong engine to
according to ltsa an subaru service center my car isn't even a wrx lol an they had the cheek to tell me it wasn't an sti by any means, then I nicely pointed out the factory engine code an the sti goodies it has to him