I am not sure where in the GTA you are, but I have a set that I built 3 years ago, and still listen to!
I am out in Burlington, so if a trip to the West end works for you, drop me a PM, and we will work it out.
They can be very rewarding, once the details are worked out.
I believe it was MarkC who brought his set out once, and as I recall he has implemented tweeters and subs. I have only done subs, as the addition of phase plugs has made me happy with their treble performance.