One good thing about the 03 its the cheapest MY to buy due to age yet you still enjoy all the advantages a modern platform like the Z33 offers
The base will also book a bit lower on top of that <and> the Base 03 is the lightest Z33 you cna buy
The only drawback is the LSD is not on the base but its an easy fix for 1.5 k if you feel you need it in the future.And also the lack of LSD is reflected in a lower book price
Tire weathering can be solved with exact alignment with the "new" specs.I think there are some threads somewhere on here, from 4 years ago that explain this in detail and what the (easy) fix is.
Also ask the dealer to see if the transmission is original?If not, it likely has the MY 04.5 or MY 05 part number transmission.
And if it is original.... well not <all> of the 03's had the bad synchros. at 8xxxx miles if it had the bad synchros it would have shown up by now..
If it shifts fine ( especially into third) youre clear.