I did exactly the same thing to my 114e, including the L.R. Baggs Element!
(However, I have no power tools, so it took FOREVER to hacksaw and sand down to size.)
I neglected to upload a photo of the finished product, but I painted it black and installed the endpin jack.
And yes, it sounds a lot better now, and I'm not ashamed to use it as a backup guitar or for festivals and other such performance that might endanger my "nice" guitars.