First off, invest in a UPS before getting any new components. A surge protector, despite its name, doesn't do too much against lightning (it passes through far too fast and does its damage before the protector has a chance to shut off. Most strips will allow about 200v@20a to pass through before shutting off. A standard consumer-grade UPS has a conversion time of ~16ms, just short enough to keep your PC from being fried and when experiencing electrical noise (also known as dirty wall power), it'll switch over to battery to be safe. Higher end UPS units (such as double-conversion units) run off of the batteries all of the time, meaning that there's no time to switch over to battery in a problem, and it protects further. Unfortunately, those are crazy expensive. Just get a standard UPS, you should be much better. Now, to the question at hand:
I think that AMD's Ryzen line is an excellent choice at this point in time, and the 2700 is a great processor. Ryzen has had time to "mature," and you shouldn't run into issues that people experienced at launch. I say go for it. Good luck on your updated build!