rd28 engine swap

[sadxvibes]

Honestly I am not chasing big power mostly something that could do a bit off-road and reliable and could repair it in the next 10 years considering innovation comes late here .
The gearbox could stay for now tbh maybe when I can't repair it I would change it but I am afraid considering how old it is it could be prone to failure some friends told me to get om606 with om603 injectors to make it fully mechanical the engine would cost about 1.2k in USD with a revision it could become brand new but again I am not sure if the gearbox could handle if shit hits the fan maybe look for a zd30 gearbox. The problem here would be if the engine has a problem in the future is how I would have to fix it I am not really optimistic about finding Mercedes parts but I asked around a engine swap for the Mercedes one costs about 3.4k USD (converting currencies is annoying not gonna lie)
I am honestly looking for something reliable with enough torque to be able to go around in the farmland (we have olives farmland) so even from torque perspective it doesn't have to be that much.
Thanks for the clearing up stuff for me appreciate it