Most (if not all) WE glock sold in Canada have the later version, round-angle barrel. But slide-barrel sets sold alone may still be the old version. Did you get it from A*iaA*rs*ft.com? I will try to avoid it...
If it is true that Echo1 Timberwolf is OEM by WE, then it is possible it suffers the same problem of the outer barrel breaking as the early WE glocks, and WE didn't bother to fix that on Timberwolf. Other glock barrels with straight angle design don't have nearly as much problem as WE straight angle barrel, this should be a problem specific to WE straight angle barrel. Probably the way WE makes that causes tension in that spot, or WE made that spot weaker than other companies do.
If you mix-match slide and barrel from different company, you may also have an issue.
This post may help. I am not saying a PCG barrel will have a problem nor you should also buy a PCG slide, I am just saying maybe don't be too hurry on buying an expensive outer barrel.
Here is what I would do if I am in this situation:
First I will try to confirm if Echo1 Timberwolf is OEM by WE. I heard it is, I am not sure. I would ask some more experienced people, and I will compare the internals between WE Glock and Echo1 Timberwolf.
If I can confirm it is OEMed by WE, I would email a Taiwan retailer about ordering an WE glock outer barrel. They get their parts from WE directly and frequently, so it is almost certain it will be a new version barrel, but it is good to ask in the email and be sure. (The old version is actually very old, I would be superised if they can find an old version barrel.) Evike may work as well but watch out for brokage fee. The barrel should be very cheap ($10-20 ish).
If it solves the problem, great (I think it would). If it don't, I would start doing work about aftermarket barrel on WE glock, and how they interact on stock/HK3P slides. If it says I will have to buy a $250 slide-barrel set to revive a Echo1 Timberwolf, I would make a decision between dumping the gun or paying the $250. If it went that bad, I will probably give up and use the gun for spare parts.