a 961d, if the original or same type engine would be a 172ci diesel engine.
the oem pump should have been roosamaster.
the sn is on a flat onthe trans bellhousing aft of the starter.. however.. all the chassis parts from the 901 series will interchange with it.. and you already know the engine now.
i'd forget putting a turbo on it...
does this machine have a wide front or narrow front?
in either case you are working on a 1500-2500$ machine.. so i wouldn't sink a lotta work or $$ into it.
emblems are available... certain 3pt hitch parts for the rowcrop series will be hard to find..
ps.. you'd get more/ better answers in the FORD forum.. not the generic 'tips' forum...