Yes, custom toolbars are broken in RoR beta, universal toolbars are graphically hit in the face a second time since update 7
, but they remain functional.
... But it will be a pain to redraw it in order to shift the right side buttons, especially at the present state where the buttons have much less space separating it, which is a real problem with skins displaying "large" borders around the buttons.
As soon a skinning pack update will be released, and at the condition it includes the new toolbar code, we should be able to fix the custom toolbars, the core of the question will probably be release date of this pack.
A few days before the october 15th should be ideal, by I seriously doubt this will be the case. I asked the question 4 times on lotro forums, but I still had no answer.