http://www.klone-audio.com/
Eldragan probably knows the other link with clones--his are featured.
Advices:
1) You might want to biamp for your low-end. That'll cut you some slack on the xover in different ways. Assuming you're ok with deviating from the clone that much-it would/could be an improvement. marchandelec.com and sound.au.com
2) Wilson X-1's aren't using those big $700 Focal Audiom subs, even though they look the same from the front. Its got a smaller motor--they may be custom made.
3) Don't know for sure, but you may not be able to clone any of them to the driver so you can A) get as close as you can or b) since you know it won't be exact, use "better"/next step up drivers from focal or whoever and just copy the basic enclosure. (Take some liberties of your own) The tweets might be off-the-shelf--I didn't think Wilson spent money on TLR's though on the X-1. I think the earlier x-1's used seas drivers for the mids.
Personnally, I'd clone the puppy/watt things like eldragan did. It looks good, cabinetry not a headache. I think its a better route. I don't like MTM/D'appolito arrays like the X-1 uses. He's got'em pictured on a thread in the archives.
