I have Vinnie's original Signature 30 powering a pair of Omega Super 3 Bipoles with Louis' Hemp drivers that replaced the original Fostex drivers. Having changed out the drivers, I believe my speakers are now basically Super 5 Bipoles
(Bipoles), which are a variation of the Super 5s
The Bipoles have forward and rear firing drivers. Because Louis was wise enough to build these speakers with the ability to use only the forward firing drivers, I believe I've had the oportunity to at least come close to hearing what the Super 5s might sound like, which is really good with the Sig 30, a Mapletree tubed preamp and a modded Squeezebox Touch.
I'm mentioning all of this, because I think you could do quite well if you purchased the Omega Super 5s and a sub (I really do think one needs a sub with Omega speakers that have the 4.5" drivers). For a number of years I used a Martin Logan Dynamo subwoofer, which I thought sounded very good with the Omegas.
Just looking around here at AC and Audiogon I found the following that might work with your budget.Omega Super 5 - $695
&Martin Logan Dynamo Subwoofer - $300
This would put you a bit over your $1000 limit when you add in shipping, but I bet you might be able to work with the sellers to get your cost down.
I just thought I'd throw this out there as an idea for you to consider that I can somewhat vouch for from experience.