1- Be warned that soloing will become incredibly slow.
2- It's hard to go wrong with the Resto tree, imo. However, you must consider that at this point you do not have Lifebloom so going with ToL form will seriously gimp your healing capabilities.
I would suggest a Dreamstate build. Spec Balance deep enough to get Dreamstate, then work your way in Resto, taking the talents that boost Healing Touch and ignore most of those that boost HoT spells.