You must mean a calf not with it's mother. We had luck using your finger with milk on it and swapping to a bucket nipple. Hope you got it or by now the calf is a goner.
JD posted 95 PTO and 84 drawbar, engine not shown in my book but some may be gained with a combination including injectors. More important is what your use is and conditions of soil and equipment. 4010 and 4020 were and are good machines.
I am with you on this one, not sure if dpf is a real green house help or joke. I have one compact and wish I was using an 8N with hydrostat. Don't have to call a rep though, keep the rpm's up and follow the manual.