Help Choosing Speakers

All the Vandy 2 series are a HUGE step up from the 1 series. Even considering your demo results, spare power would be beneficial; you might not notice it unless playing dynamic challenging music, but in the long you will appreciate having spare power & headroom from clipping. 

My advice is to call John Rutan at Audio Connection, who is probably the #1 Vandy dealer. Ask him about getting a trade in 2 Series, as he likely has a steady stream of upgraders seeking Treo, 5 & 7 series etc.

If you are open to others than Dec amps consider used McCormack for SS or go with something from Rogue for tubes. Both are frequently paired successfully with Vandys.

2s will keep you happy for a long time and you can upgrade your other gear around them without them being the weakness for some time. I did.
The 1s will leave you wanting more & soon. Cheers,
Spencer  

Definitely avoid rear ported speakers if you must place them close to the wall. 
Many of the older designed British speakers were designed for use near the wall since many were built for smaller apartments. Totems are another brand that won't suffer too much from near wall placement. 

Cheers,
Spencer

Open baffles will be better away from the wall, and with absorption or diffusion panels on the wall behind them. Cheers,
Spencer