Keep eagle set so that you can shift a few times without going oom. Go full Resto for talents and try to remember that other forms are a luxury you can't afford as often as you did before. Your positioning and movement will be more like a Priest. You drop HoTs and try to stay at max range, making you extremely hard to target.
Cleansing poisons is one of your main uses over a priest, along with being extremely hard to get to or CC.
I loved having my Resto buddy pocket healing my Lock back in the day, really sick combo.