vandersteen 2sigs to magnepan .7 good move?

Room size ? System? I love maggies and have had many . The ticket is maggies with vandy subs. There are a set of 3.6 on the gon for like 2300 i think👆 there killer . But you havnt explained your setup so ...

Eminent Technology LFT-8b. There are a used pair in Washington state right now on U.S. Audiomart for $1800. Magnetic-Planar push-pull design inherently superior to Magnepan’s single-ended models. 180Hz to 10kHz from a single driver! Woofer below 180Hz, ribbon tweeter above 10kHz.

Vandys and Maggies seem to share a lot of similar sound qualities.
I remember hearing Maggies years ago and I still remember them positively.
I ended up with the Vandy 3a sigs and 2w subs.
In my opinion, you are going to need subs. 
Can you get a pair of Vandy 2w/2wq's? Or, if that is too much, a pair of Hsu subs. This will get you closer to bass reproduction, that the 2 sigs lack.
If you still have the 'itch', then you could get a pair of Maggies. The Vandersteen subs are a great match for them.
If you can afford it, you should listen to both and see which ones you prefer. But, I think you should first get a sub( or,preferably, a pair), as this will be the most cost efficient upgrade you can perform. Trust me, I've been there....

What qualities do you prefer? I ask because I've owned the 2CE signatures, Maggie 12QR (pretty close to the .7) as well as the Maggie 1.6s. 
If image depth is an important factor, the Vandersteens win by a mile. Another plus for the Vandies is bass depth. While the Maggies, both models, present exceptionally clean bass, the 2CEs go deeper. I will say though, the Maggies go plenty low for most music. And that clear, clean bass is intoxicating.
For me, the 3 dimensional image form the Vandersteens wins. Best bet would be to get a pair of .7s from your dealer and demo them at home. Very important to hear them in your room.