I am away from a guitar right now so I can’t try it out, but it certainly looks right. I am kind of new to learning by ear, I find learning blue rodeo songs by ear is great because their songs usually consist of simple chord progressions. I have come close to what you have but I was making it a bit more complicated then it is. Do you play the riff with it? I found a tab with a single note transcription and it sounds acceptable but it sounds like it is a double stringed riff (sorry for the terrible terminology), or is it just harmonized?
The tab was something like this (on the bottom string) (again I don’t have my guitar on me so its by memory)
-8-9-8-7-5
8-9-8-7-5—3-2-0
Thanks for the help, I’ll try it out as soon as I get home.