Libra 2 Transfer of library of books

Hi Guys!
I have had my Libra2 for a couple of years now and suffice to say I have 'lots' (a few thousand)of books, many, many sideloaded and organised into lots of collections.

I am going to be upgrading to a Libra Colrour soon and I am wondering if there is a simple way to just mirror my existing collections straight onto the new reader without having to replicate every collection manually?

Any ideas gratefully received

Thanks a lot