The most important thing is to give an impulse to the FSD in time so that it opens the IP dosing valve. The pump has two optical sensors and a wheel with two rows of slots. I took the signal from the Low resolution CAM sensor (pin B). The output signal of this sensor is implemented according...
When a long time ago I made a homemade stand for the DS4 pump, I connected the FSD, used the optical sensor of the pump as a pulse generator for the FSD. Pump rotated by electric drill.
I think so: Kubota, Iseki,Yanmar Shibaura 15-25 hp = 5-12k$ + hinged hydraulic turner and auger for another 2-3k$. Usually a mini tractor complete with a tiller.
For example: