I ran over to Target this morning...granted, it was 15 minutes after they opened, but they had one of each of these 5 figures, except of course for the Knight of Ren.
Given that I have the Luke, I basically managed to buy 3 figures - and that was the grand some of what they had. No vehicles, no extras, no nothing else.
4 figures.
Edit... I managed to order a Knight if Ren on Amazon. It says it doesn’t ship for 1 to 3 weeks, but I can live with that to avoid the headache and if I find one I can always cancel.