A few tips guys:
make sure you wrap your braided lines in something protective if they touch/rub on anything, they WILL rub through almost anything and cause ou problems.
Also dont worry too much about the old oil problem, its not a big issue as Grigor pointed out. I mounted my cooler with the fitting facing down so every second oil change I simply undo them and the the oil drain from the lines/cooler, problem solved.
Nick