That's a tough price range, maybe price some Cardas neutral reference, that was the line that the golden ref eventually replaced and is still sought after today. I think they can be had at your price point?
It took me a while to get where I am today but you never give up and eventually you get it all. You just have to keep upgrading as you see deals pop up.
It's good if you have an idea of where your going with your system and where you want to be in five years. You may upgrade everything you have three times between now and then but that's OK. Words of advise, get your wife interested in the hobbie :^)
I use to own a lot of Thiel speakers a couple of years ago and used MIT all the way through. I made it as far as the 770 twin line before moving to a lighter cable (physically speaking) After experimenting with Nordost Quatro-fil and Cardas I ended up staying with Cardas "Golden Ref" Which I have to this day.
When I changed speaker lines from Thiel to Aerial Acoustics
the Cardas fit right in.
These day's I'm pretty happy with my rig and spend most of my time fishing through the vinyl bins around town for rare lp's.
Take your time and enjoy the music every chance you get!