I think wiring harnesses are about $400 to $500, parts only, and ETA are about $800 to $1,000. I've not had to do oil tubes but there is a wealth of information in the archives on this. The 124/119 combination just has a good feel to it. It's not necessary a fast car but it does everything effortlessly. I think the rear axle ratio is something like 2.25 versus 3.07 on a 3.2 (I'm making up these numbers but I'm sure someone can correct them.)