Excellent write up!
I just did this last weekend and found what I feel to be a more accurate method of measuring the old tie rod length. I straightened out the inner ball joint by eye and held the entire assembly against the wall with the outer ball joint on the floor ensuring the top of the inner ball joint was parallel to the floor. I marked the EXACT height against the wall using a thin straightedge razor blade and adjusted the new tie rod to match this mark. I found it difficult to get an accurate measurement with the boot still attached to the assembly. This worked great and I even drove with them adjusted this way for a week before I could get to the alignment shop with no issues.