I've got creaky rear susp and its caused by worn drop links. Parts only cost £80 for new and easy to fit so do yourself of a local mechanic will charge you around £60.
Check elec windows work, make sure CD players works while driving, listen to make sure stereo doesnt cut out on left side speakers, clicky axle and think thats it.
Just be careful to triple check the paperwork. £23k is very very low mileage for the year!