If you want to try the Enkamat, try this guy, I think he's in the lower mainland like you:
http://www.canreef.com/vbulletin/showthread.php?t=45509
Otherwise maybe try Ocean Aquatics? Maybe Wendell has some? .. I know you can mail order smallish pieces from premiumaquatics.com and maybe some other US based vendors. I see it sometimes pop up on ebay as well so that might be worth a quick check.
I don't know why my recirc mod didn't work but I definitely didn't get any increase in skimmate production or darkness of skimmate. Maybe my situation was a one-off. I find that a lot of sump based skimmers nowadays don't have recirc, even the top dollar models seem to be single-pass. You can easily make the skimmer a psuedo recirculation by having the effluent of the skimmer upstream of the intake, so the recirculation still happens but it happens in concert (so to speak) with your sump. Although if you're comfortable drilling holes in the skimmer then go for it. I ended up not liking how I had it the first time I patched the holes and tried again, so I ended up with a real fugly Frankenstein of a skimmer with diminished resale value (not that these things hold onto much of their retail value anyhow though, so I guess that doesn't really play into things..)
If it was me, I say do the meshmod first because if you don't like it (I would be VERY surprised if you didn't like it, but you never know
), all you need is a new impeller to undo the mod. Those Sedra impellers don't last forever anyhow, so it's a given that sooner or later you'll need a replacement impeller regardless.