Upper swap with P89 lower

I've been wondering if my P89 lower will fit any other stainless uppers, either P94 or P95 series? Also is their a 40 or 45 slide for this frame that will fit or would magazine dimensions rule this out. My stock slide looks pretty beat up and I wanted to drop something else into the frame that was a little cleaner looking and or maybe could give me some extra caliber options. Thanks upfront guys.

89 and 91 can swap to get 40 cal but that is about it for the 89. Also you need to be aware of the serial number when buying parts as the 89 has had at lease three different styles over the years.

Be cheaper to just buy a second gun.