I did #1 & #2 as you said under Properties/Layout; but I discovered this:- Under the page format, -DO NOT hit" booklet" under the Layout section (Do that in the main print section. ) Page per sheet has to be marked as "1" (booklet will make 2 pgs appear side by side on half a full pg) Also I discovered "Flip on Long Edge" worked .
Then on the main print section I continued to keep subset as "both sides", binding as "left", & yes, orientation as PORTRAIT was right (kudos!). I did NOT check "auto rotate" I set the page size as "fit". I clicked on booklet icon , then set to print **(See tip at bottom)
It took 2 tries to get it right. What is weird is that the print preview showed both of them looking the same, but as I said, the 2nd try worked. Yay!!!!!!! I hope this will help so many others.
**Another tip: On the main print page where the section names the pages you print, Type in the words "Page" beside the number. I typed in "Page 1--Page 4" & I got a good sample of the entire booklet & how it would print.
Happy booklet printing!