Idle is a big problem, hopefully newer tech meets that requirement better. Hybrid engines seem like good candidates so far, especially for low power applications like this. I’m assuming you periodically need power over 100hp to have a system running def, so some of the potential energy hybrids might eventually be better for these types of surge applications. But yeah, like you said, if farmers could import unregulated shit, they would by the sea container. That’s exactly why they can’t be allowed to make that decision, they’d never agree to sitting through a regen if they didn’t have to. But that’s emissions law, not right to repair.