Sprinters - Old or Newer For Reliability ?

I'm looking to buy a MWB to turn into a camper but with a garage for my bikes, budget for the base van is £8k

Whilst I prefer the look of the 2014+ am I better off with an older one for reliability ?

Currently I'm running an 07 V6 Vito and other than the odd sensor its been great for 7 years

I don't want adblue / injector / Turbo etc issues

Also I'm struggling to find any 3.0 is the smaller engine good enough ?

I'd consider a Crafter or possibly Iveco if there's a good reason but Sprinters have a good resale and I've owned them before