oldskool

Hi everyone and thanks for allowing me to join this forum - we have got 2 p.t. cruisers in our family (one diesel/one petrol) and currently looking at buying a diesel 300C estate any advice or guidance on what to look out for ? or indeed if anyone knows of a good diesel estate (would like an SRT model) for sale at sensible money please get in touch - I am based in Kent and don't really want to go chasing up and down the country (prefer a private seller) but will travel for the right vehicle (all colours considered) max. budget £5 - £6k must have service history (no cat C/D vehicles)