This is my tool list for my build.
I had the HF torque wrench so add another $10 - $15 if you don't have one. Of course you can do better than that, I calibrated mine so it came down to more than what I just paid for it.
Just about everything I got, I waited for a sale over the course of a few months. Maybe add 15 - 20% to the total to get a more realistic (no sale, no deal) prices.
Aeroshell barrel and nut grease … 0.54
Williams 10815 ½” drive crowfoot wrench 1-1/4” … 20.51
Yost 455 5.5” vise … 62.57
Wheeler roll pin tool kit … 38.30
Pro Mag Upper/Lower receiver vise block … 36.19
Ergo Grip stock wrench … 5.89
Total … 164