It's listed as a torrent at 1337x.to under Gov't Mule - Stoned Side Of The Mule - Vol 1 & 2 (2015) mp3@320. There are also various bits of a show featuring the Mule doing Stones songs on YouTube. A YouTube converter may enable you to patch together enough songs to create your own CD.
While going through a storage drive looking for something else I came across the Mule doing the Stones album. Here it is for the next 7 days for any of y'all that may want to give it a go.