Great! If you would like to share your info about the timing in this other thread Estimate your Librem 5 shipping - #237 by irvinewade that would be much appreciated by those of us trying to guess how the shipping is going, how many they send each month and so on. I understand of course if you don’t want to tell everyone.
About multi-boot I don’t know, I would also like to find out more about if/how that could work. All I know is that it works differently to various GNU/Linux laptops where I have used multiboot, because the Librem 5 does not use grub. Maybe multi-boot is possible, but not the way I am used to.