At this stage the oldest ones are 16 years old and the newest are 10 years old so the bad ones of all vintages will probably be dead by now!
I’d buy the best one for the budget, I’d rather a well looked after early one than a rough late one, mainly because a bad one can go through cash like a stag party in a strip club.
There’s a guy who advertises on DD who can crew cab jeeps, Mogan Maher so he might be worth having a chat with if you buy one that’s currently on private tax.