I just got the estimate from PCBway for the new configuration: $95 for five boards. That's $19 each, which is not a bad price at all.
I don't think I'll be needing any more revisions; I just need to wait to find out what happens with the contest, and for my bank account to have that much space in it. If I end up buying them myself, it'll probably be at least February 5, and possibly as late as March or April.
(I may be wasting money by buying assembly for five boards. PCBway only makes boards in lots of 5, or I'd get just one or two. I may revise my order and get only one assembled, especially if I have to revise the board design.)