Now will use guild repairs if you have them available to you. See the caveats though.
If you don't want to use guild repairs , you can edit the first code line to turn this off.
Also now has support for AddonLoader, not sure it makes sense for such a small addon though.
The function to return repair costs does not update after repairs, so we do not seem to have any way to check that you actually had the money or guild gold available to do the repairs.