Backup/Restore LUKS RAID

Hello,
Following the advice from this post, I admit the need for me to eliminate some parameter in my attempt to install Qubes the way I want it.

BUT … if I do a complete install that finally works and then want to move on to add other layer (LUKS, RAID) I have a question:

Would a backup of an install on a single disk not encrypted will be able to be restored on a dble (Soft RAID1) disk with LUKS ? (doing another install as such, then restore the BU on it)

I could do the test(s), but it’s so much easier to ask for more experienced advice