I just put a set of new edge pony seats in my 83. I used the stock new edge bracket on the passenger seat and a passenger bracket on the drivers seat. You need to modify a portion of the bracket for it to work takes 5 minutes with a cutoff wheel. And they actually sit lower than the stock 83...
Water and oil seperate homie just because it came out of the front dosent mean it diddnt get sucked up the pump. . Look how bad that oil on the cap was. At a maximum I woulda drove 20 miles and changed the oil.