A 120k car can feel awful or not bad. in my experience, it all depends on whether it has had suspension work. If you are still on the original bushes, shocks, clutch etc, it will be a lousy drive.
If all these things have been done, then maybe it will be ok. in my opinion, 4k seems top money for an average mileage 1.8 of that age - so V steep for those miles.