Franks , I have owned 7 x R32 GTR's for various periods of time.
They are tough in the drivetrain except that 3 have needed clutches when they arrived.
Most of them over 80K have 1 or more front driveshaft boots split.
The airflow meters play up occassionally , especially when cold.
Most have had some panel and /or paint ( yes , even the grade 3.5 /4 ) and virtually all have some aftermarket pipes , gauges etc.
If you find a genuine , original , low KM one in Japan , expect to pay 1.5 mil yen or more. Even the Japs like the good ones.
Cheers
Ken