...Don't forget to draw a chalk outline around hood hinges before you take off the hood, or you may be fussing with trying to get your hood back on straight during the assembly.... I would go with a 185F thermostat...my heater is a little cold with the 180F.
I would look at ordering a thread chaser (not tap) for the head bolt threads...1/2"-13 ARP. I had to wait about two weeks for it to come in.
My bad, didn't take note of the year. I know when I did mine the chaser cleaned out quite a bit of gunk from the threads. Not gonna argue with a guy that builds these engines for a living though.