Just an update guys. First off, I greatly appreciate all of the responses I received! I can tell many here have had similar issues and unique solutions.
Someone had asked about Lowe's and, yes, that or HD was where I was originally going to purchase the 4 posts. You were correct about their $75 delivery charge and the truck they rent was too short for the posts, so I decided against either option.
I also decided against the stationwagon idea. A few years ago, I did purchase a 40' aluminum ladder from Lowe's and tied it to the wagon top. Made it the 23 mile distance home ok, but then again that was aluminum and this is pressure treated soil contact 4x4's so a different animal I suspect.
My local lumber yard, who I hardly ever use, to the rescue! Posts are bit higher in price than Lowe's or HD, but only a $3 delivery charge per post. So $12 versus $75 at either of the two chains. I'm going with the local lumber yard.
Thanks again for all the commentary and tips!
Harry