Need help figuring out these chords

Howdy and Welcome to the Chordie Forums !!  First off, not being that big of a Country music fan, I looked and listened to the tune on YT.  Other than being a "real tear jerker" and not too complicated..... I noticed that it was mostly Keyboard.  So in order to get close to the original key signature, you will likely have to capo on 2 to fit the Piano chords.

Now for the "fun part"  visit Chordify.net and feed it through their online translator (you may be able to just direct it to the YT URL for the tune) and see what it comes up with.  The results are surprisingly accurate, although I'm expecting it will give you chords for Piano (which is why the capo, no transposing needed).

Like you I was not able to find it on the web either, but Craig might have the sheet music for sale via his own website.

Good Luck and Thanks for asking!