Andrewynn,
I am not sure which part your selling. N62 or m62, also you state you have 2 e53 3.0 and maybe looking for a V8 but offering knowledge on the day of the V8.

When and if I get a particular model, I will be looking for all those tips like Mickey's o ring. I bet there are many. I have an 89 mustang many years ago. Back then(maybe they still do) I bought many mustang mags and did 100 different things to it. Some big and many small. No forums like this then and I have done the forum thing on many of my other vehicles. Knowledge is King.