Since I've started being asked about this I better post a thread. Whilst I've not given it any thought at this stage, I assume that we will do a 2020 bulk buy similar to the previous ones. If you interact with this post (like, vote etc) then I'll let you know when the buy opens.
And my wife thought I was crazy thinking of Christmas lights so early in the year.
Good to know I have company.
As a newbie I though an F16 to start. I'll lurk and look more before a final decision though.