My old tensioner was extended a little farther than beyond spec:
The bracket on the new auto-tensioner assembly was slightly different, and I was unable to achieve the correct adjustment. I ended up having to disassemble my old auto-tensioner and rob the bracket. After cleaning, I put the new piston assembly and bearing on the old bracket and was able to achieve spec. (Note this picture not of my fraken-tensioner, but a picture of the new assembly not fitting correctly.)
Other than the bracket differences on the tensioner, the process was pretty straight forward. There are numerous guides online for the timing belt procedure on this engine. The only thing I would have done differently was have the upper timing belt cover gaskets on hand. Upon inspection, there were no gaskets on either of the upper covers
I am glad I had two cans of brake clean and enough shop towels to clean off all the grime that had collected on the covers.
Upon reflection, I now remember that I LEFT THE STOPPER BOLT IN THE AUTOTENSIONER. While the bolt was extended enough not to have an effect on the operation of the tensioner, enough road vibrations could theoretically unscrew the bolt, have it fall and cause catastrophic failure. Maybe I'll order the timing belt cover gaskets and do a partially disassembly to rescue the bolt and install the cover gaskets.