Great-looking installation, Bob
Our engines have been attached to belt-driven pumps & mounted on a sort of pallet about 2 metres in width
Because of the rubber mounting, vibration is concentrated in the motor and the standard controller, which sits atop a 40X40 pedestal, rattles around so much the it'll begin to fall to pieces in a few days (poor design). We just sink a post into the ground nearby & mount it on that - problem solved
Apart from the occasional fuel solenoid or engine oil pressure sender failure - they have been boringly reliable
And, because they go out on farm, they are obviously designed to run for years without an oil change or servicing of any kind too . . . I guess when the oil low-level circuit throws up its hands in despair, whoever gets called out to fix it, gives it a "birthday" and on it goes . . .