How are you booting into rxTools currently? You will be able to boot to Luma the same way: eg menuhax or browser. There should be a thread about updating from rxTools to Luma around here but basically it's just a matter of copying the Luma files to your SD and either reconfiguring menuhax or going to a different web address (and deleting the rxTools files). There does exist an rxTools build that works with 11.0 emuNAND but there's so many rxTools versions and no central repository that it would be really hard to find.
