Which amp for Energy Veritas v2.3i?

Hi, my brother is giving me a pair of Energy Veritas v2.3i's. They're for my living room for 2-channel music exclusively. Room is 16 x 26' with an 11.5' vaulted, beamed ceiling. l listen to a lot of vinyl - 60s, 70s soul/blues (Stax-centric); electric soul/jazz (Miles' Tribute To Jack Johnson is a go-to); solo guitar (Merle Travis, Chet Atkins, Leo Kottke). Then random listening to a variety of rock, pop and indie rock through an Audioengine B1 Bluetooth DAC. Listening will be more casual/social in nature - parties, small get togethers, etc, with the occasional more-discerning solo listening session solo or sessions with like-minded family and friends.  

Forgive my newbie questions. My budget is around $500, so I'm drawn to the the used Adcom market. The manual for the speakers states that a 200 watt amp is optimal. So will I be okay with 100 wpc or do they mean 200 wpc?  I see a Craigslist offering for Adcom GFT555 tuner, GFP555 preamp, GFA545 amp (100 wpc), $350 total. The same guy has a GFA555 (200 wpc) for $350, and I figure I could get the pre-amp for somewhere around $150 to go with it. Will a GFA545 at 100 wpc do it, or is the GFA 555 where it's at? 

I'm also looking at NAD integrated - for example will an NAD C 356Bee (80 wpc) drive these speakers? This stretches my budget because I'd need a phono pre-amp, as well. Would that be worth it? 

Any input from y'all would be appreciated, including other amplifier options to get these things up and running.