Congrats on the purchase.
No cats on the Disco1.
Extractors are said to be overrated on these from the people I've spoken to. Then again if they can be had cheap like you say then maybe.
I notice it doesn't have any of the ES woodgrain. Must not have had it that early on.
They are a great cheap fun machine but don't expect too much from the 3.9 V8. Think VN Commodore V6 in a 2 tonne vehicle.

