Want to replace Vandersteen 1C's with better spk

I own a a pair of Vandersteen 1C's. They are nice speakers for the money, but after almost a year of listening, I recognize their limitations. (I am no novice to high end speakers and have heard about 85% of the notable speakers out there) Nevertheless, I want to replace them but don't want to spend more than $2000 new, possibly $1600. I have a chance to buy a pair of Thiel's 2.3 which I have heard in the past and liked. I know you need a high current amp for them to even begin to reach their potential. I have an Aragon 4004MK II which should fit the bill. Though, my main problem may be the size of my living room which is 12X13; though that is only temporary. I have been told that the Thiel's need a large space because of their crossover configuration which requires a farther distance from the listener to the speakers. I would be about 6-7 feet away from the cneter line. So, would appreciate some advice. I have heard Gallo Reference 3's (new) and was impressed by them though they need a lot of power and are somewhat restricted in dynamic range. Unfortunately, they also are too expensive.I have also heard Totem's "Hawk".... I have been recommended the Dali IKon 6's and and Triangle Antal ESw. which are both in my price range. I wonder if the Thiel 2.3 though an older design would outmatch these other speakers and some other higher priced speakers. All opinions welcomed!! Thank you, Jim