Like the look you have going here. Looking forward to seeing what you do with these.
The JB weld would probably hold pretty well, but I would recommend you go get you some PVC glue. That will pretty much never fail if applied right. If you can find it, get Christy's Red Hot ($5-ish), then you wont need a primer to make it work. I have made an effort to break those bonds and ususally I end up breaking the PVC before the weld fails.