This is damn terrifying

So, my wife and I have decided to get into van life. We are each going to convert a van so that we can caravan or do our own mini adventures. Looking around for a vehicle and it's pretty important to us to have the height and space if a cargo van. So in comes used Sprinter, Promaster, and Transit.

ALL OF THEM ARE FULL OF HORROR STORIES.

SPRINTER HAS 4WD/AWD, but it's a Mercedes that apparently sucks and finding a mechanic is awful and repair costs are huge.

PROMASTER IS WIDE AND BOXY, but FIAT sucks and the transmission and repair costs, etc.

TRANSIT IS FORD AND EVERYWHERE, but EcoBoost is bad and it's break down and etc.

Please someone help us feel more confident about making a purchase. We are looking to buy used, $35k budget per van + conversion

Edit: Spelling cuz I'm a toddler