Leveling a Priest as Shadow, but Gearing to be Healer at Level 70

So you level your priest as shadow (you should, it's just way faster), but you want to heal when you hit 70. What to do? How to get gear?

Leveling a Priest as Shadow, but Gearing to be Healer at Level 70

Tailoring is not needed, but the tailored sets are soo good that it's recommended.
The sets are better than T4, maybe even T5 in some uses.

Primal Mooncloth Set
Whitemend Wisdom Set

Here's what I would suggest (what I did):

Plan your gear ahead. Use the resources, for example:
Kaliban's WoW-Loot List (Priest)
Best Casual PvE Healing Gear by A Dwarf Priest

1) At around lvl65 (or whenever you hit Nagrand), start taking healing gear as quest rewards over the dps gear.

2) And start going to outland instances as healer (you can very well as shadow) and pick up gear there. Or if you go in instance as dps, ask if you can roll for healer gear if such would show up.

3) Work on the reputation for certain factions to get healer gear from rewards (Like Watcher's Cowl from Cenarion Expedition, Lower City Prayerbook, etc.)

4) And if you like, level tailoring, and work on the PMC set while doing the above

This way I had couple of pieces of PMC done when I hit 70 and I had healer gear from normal instances and some quest rewards. When I finished last piece of PMC, I respecced holy, and started doing heroics for even more healer gear.