What's this PC worth? Will it play iRacing / PG2 OK?

[AsaTDi]

Hi,

A good friend of mine is selling his old PC and has offered me it but is unsure of a fair price.

Spec;

Case: Corsair 700D
Motherboard: Gigabit GA-P55A-UD5
Processor:i5 760 2.8Ghz
Memory: 16gb (unknown frequency, but decent brand)
GPU: AMD 7990 HD
HDD: 60GB OCZ SSD

Also, will this play iRacing on the top settings @ 1080p 60hz? And will Project Cars 2 be playable at 1080p 60hz?

Thanks guys.