Well then I would look at rapeseed, which under good conditions can give you 100-125 gallons of oil per acre. so a 50x100 foot plot will give you a gallon. An oil press is simpler then a still. I built a simple hydraulic olive oil press for for $250.

I guess I'm harping on the subject, but tractors are not just for row crops they are a source of portable power. I tried doing everything by hand on 5 acres. It is possible but not very much fun. The PTO on a tractor can drive lots of handy tools, tillers, oil press, post hole driller, water pumps, wood splitter, Manure/compost spreader. Saving your back is very important, if you wish to be self sufficient. A 50’x100’ garden took me 60 cu yards of compost a year to keep the soil in good shape, at least that’s what we used in Washington State, but the soil there on the west side of the Cascades was not very fertile, and with all the rain it leached out pretty quick. So with a good 2-wheel wheelbarrow that’s about 300 trips over tilled ground and now you get to till it in by hand.
I had a small 15 hp Yanmar tractor that worked out perfect. They are cheap, I paid $4000. for the tractor with a front loader bucket and tiller. I bought a post hole drill for $150. and built a wood splitter and field mower from old parts I found in junk yards.
I used about 20-25 gallons of diesel a year at the most and that was when I was clearing some new pastures. Some years I only used 10-15 gallons of fuel.