we have an 07 LWB Transit, have had to change the clutch twice,two sets of tyres and one set of brakes in 16 months but it is fully loaded with a 800 litre and 400 litre tanks, twin DI, hot water system and loads of wfp poles hand tools and three window cleaners. so that will have a big effect on wearing out the above parts.
Last one we had was an 02 which we again had from new.
We also use an 05 Renault Traffic 27 ....... not as good as the transit as it lacks power.