It does TDC, it does BDC. Crap, that`s almost a working engine!
The bore ought to clean up fine with a deglazing stone, toss in some new rings, do the valves (they look like they have never been reground once yet so lots of meat there), run the head under a mill and shave flat if you have access, deal withthe rusty injection parts and away you go.
What a clever idea, put an old lister engine in your meth lab and claim you are making biodiesel to confuse the authorities.