If it ain't broke, don't fix it.
Get the chain unbound and tensioned properly and try to ride it. If something did get whacked internally you will know, then fix it.
Also, be careful with that chain tensioner. They have a nasty reputation of getting pushed inwards and into the rear wheel's spokes.
Here is a thread concerning tensioners that are much safer. I linked to the style that I made for my Atlas build, but I recommend reading the whole thread.
Also, I HIGHLY recommend NOT drilling any holes in the frame
as some have suggested. A hole creates a weak spot that can easily propagate into a cracked frame.
Here is the whole thread http://motorbicycling.com/showthread.php?t=2063