I'm planning to buy a 2002 WRX for $8750.

I need advice on whether the build for this car's build is actually reliable, and if its a good price to buy / whether i should nego for a lower price (if so, what price).

Here's the details of the car and upgrades the owner has:

For sale 2002 Subaru Impreza WRX with VF 30 turbo.
4 -Cylinder with 5-Speed.
139K Miles.
Clean Title and pink slip ready.
Current registration.
Clean inside/outside.
Very well maintained .
Everything works great : A/C, Power window , Cruise control , Power mirror , Power door locks , etc...

Upgraded included:

*STI short shifter.
*Recaro Speed Seats.
*Perrin Fuel Rail.
*Greddy Exhaust.
*Stance GR + Coilovers.
*Tomei Header Uppipe.
*Hid Fog & Head Lights.
*Nice Audio System /Bluetooth ( Alpine ) with amplifier and huge speakers.
*And more.....

Im just worried if the current build of the car is able to support the VF30.
Feel free to give opinions and advice!!