You can get rid of the adapter since you don't have the 140mm rad anymore.

Those fans should be fine.

You can still get the other res as you don't have to mount pumps in it. Its only 5 dollars more and it gives u the freedom to do dual loops.

For your fittings, I suggest you go to sidewinders. They are cheaper than PPC. You may have to get the comp fitting and 45 as separate pieces. The price is normally the same though.

Your going to want about 10-15 ft of tube though. You want extra if you make a bad cut.

Everything else looks fine.