As
D Dog mentioned, I've been able to play the 0.9.1 version of the mod with the 0.9.4b version of the game without issues on my test machines. You don't have access to the newer content that way, because it's not added to the mod yet, but you can play all the current mod content up to the 0.9.1 version. But the mod is easy to install or remove as you wish, just by adding the SAZMod folder to the game folder in The Tyrant to install it, and just remove that folder to uninstall it. You don't need to overwrite any files when installing it so it leaves the original installation untouched.
However, there has been some users that reported issues when running the 0.9.1 version of the mod with the 0.9.4b version of the game. So if you run into issues running them together on your machine, I don't know what causes it sadly. So at that point it's usually best to download the 0.9.1 version of the game if you want to play the current mod while waiting for the 0.9.4b mod update.
Links to download the 0.9.1 version of the game have been shared by
Lady Aspen earlier in the thread.