Ford transit connect spare or repai

FORD TRANSIT CONNECT 2012 VAN
NO TEST BEEN PARKED UP FROM DEC I BOUGHT IT FROM A FRIEND WHO SPEND LOTS OF MONEY ON IT NEW BEARING RADIATOR DPF LOTS MORE MY FRIEND TOLD ME OIL WAS MIXING WITHBTHE WATER AND NEED THE HEAD GASKET DOING HE WAS ADVISED SO I BOUGHT THE VAN TO DO THE HEAD BUT DIDNT HAVE TIME SO I PAY FOR ITS DOING I DROVE IT FEW MILE AND PARKED IT UP NEVER USED IT THE MOT RUN OUT THERE STILL OIL IN THE WATER BUT NEED A GOO FLUSH OR A OIL COOLER WHAT I SHOULD HAVE DONE BEFORE HAVING THE HEAD DONE THERE A COUPLE OF LIGHT ON THE DASH THAT COME ON WHY BEEN PARKED UP ABS ONE BUT AFTER A RUN I WOULD SAY IT WOULD GO OUT OR MAYBE A SENSOR ALL GOOD TYRES FULL LOG BOOK ALSO WAS TOLD ITS HAD ALL THE BELTS DONE BEFORE I BOUGHT IT

I am open to ALL SWAPZ