I ended up deleting my old Crunchyroll account (
https://www.crunchyroll.com/nuke) and just making a new account using my RightStuf email/password ahead of the migration but the order history has yet to carry over. I still have a couple of stalled RightStuf preorders but decided to take advantage of some bundles (mainly Tearmoon Empire) during the current sale on Crunchyroll Store and noticed billing on PayPal at least is going through as RightStuf...
I'll see how it goes but the one thing that kills me is that you can't order anything that's on backorder from the CR store, you have to wait until its in stock.