How difficult is it to replace #16 on both sides?

 

I just did mine on both sides earlier this year when I replaced my turbos. My engine was out. I don't see how you could do it other wise.

 

well...if the alum line is bent right above turbo oil can...repairable without replacing the whole line?

 

I would say it depends on the pressure within those lines under boost. I wouldn't think it would be much. It could be done by cutting the line and removing the kinked segment. The catch is that you can only splice it back in a straight segment.

 

They are just vent lines - so no, there is no pressure, but at the same time you do not want them to leak.

My lines were cut and modified for a set of aftermarket turbos. I have an "an" fitting on the oil tank, and a line runs up to the metal line. It just has a hose clamp to hold it on.

You could run the an line all the way to the oil tank. I've seen this done with other turbos that have been relocated.