Goalie Guild! Help a dude out. (cross-posting this)

So it being summer and all and having nothing else to do I started adding goalie (ice hockey) drills to my workouts.

Now, i've never played goalie before nor do I have equipment to do so but what I'm looking for is drills and exercise that can help my general technique.

Right now i've just been doing leg strength stuff and post to post drills but what I really want is something to help out with my range of motion. Since i've never really done goalie stuff ever my range of motion is pretty horrid.

I want stretches or exercises that can help my range of motion in my torso and when i'm down in the butterfly. I'm cross-posting this to r/fitness but figured you guys would know a bit more.

Anyway I appreciate any help you guys can give me.