Lowey - i hope this helps :
as a facelift model current Trade-in is £4300 and retail around £6000 with slightly less miles, but non SE's dont make book money. i would pitch it at around £5,500 but anything over £5,000 is good price and would take it as non SE's are not particularly strong sellers.
Ref the 75 tourer depending on the spec and if the mileage is not too high, its probably a good swop if you need the CDti engine and the estate model, shame its not a ZT-T CDti !!
Goodluck
James
www.elitecar.co.uk