Claris on kickr core

I’ve just got a kickr core to upgrade to direct drive. I currently run at 11-28t 8 speed claris casette on my bike. I have a spare 8 speed 11-32t casette. Will this work to change from the “road” to the turbo or does the casette need to be the same on both. I have previously run an 11-32t on the bike so the derailleur can definately cope. Also will I need spacers to install the 8 speed casette?

Thanks in advance.

You may have to check that your chain is long enough but no other reason why this wouldnt work. 1.8mm spacer should do the trick.

You may have to tweak/adjust derailleur.