I also had a hardtime tightening that big nut for the oil cooler adapter plate. I had to take the nut and run to HF and match it to one that fit. The only one that fit well at HF is a 1'' one from the socket set # 69560
As for the oil line, I had cut a chunk off the plastic corner on the bottom left side to allow the oil lines to reach.
(don't mind the blocks and the 2x8 under the tires. They are extra and have very little weight on them. The weight of the car is on the floor jacks.)
YzGyz