Spare part availability Vario

Servus, a year ago I bought a Renault Master 2 year of manufacture 2004, now I’m driving my truck driver’s license and would like to get into the 7.5 tons class and therefore sell the master. Another reason why I have to sell the master is because I can’t find any more engine bearings for it. I’m very sure that I won’t find them anymore, after I’ve felt through the entire supply chain all the car brands that have ever had something to do with Renault and have called off all sorts of inside/except European sellers. Now I’ve looked around a bit and the Mercedes Vario has fallen right into my eye. Actually, it’s exactly what I’m looking for, about the consumption of the size it’s perfect. Also, it’s much more known and popular than the master(zb in the camper scene). My question now would be which year of construction (series) I should avoid, so that something like the master doesn’t happen again. Because online you find many Varios with Bj 2004… Also, you say the truck engines twice as far as car engines, so that is the whole of the 100,000 km for a passenger car Vario?