Costco delivered price on 22kw generator + smart transfer switch was $4800. Installer quote + tax on generator added $4354 for a total quote about $9154. The chosen location of the generator added about $900 by itself (wall penetrations + cable run) over the closer but less desirable alternative.
Actual cost is offset some by a 10% Costco cash card that will give us back about $915 after install finishes, plus getting another %4 back from it being a exec. member Costco visa purchase (%2 + %2) or about $366. Propane work should be $300 or less, so net total is probably about $8174 if I have everything straight ...
Nick