Forgive me here, I dont think anyone has tried the slide hammer before. And I am shocked that it worked to be honest. That might be one to write down for future reference!
Now its just a matter of locating a new one, or pull that drive shaft, pull the shaft out of the oil pan, plug the hole, and run it (since you were talking about just running it in 2wd). You will get a code for "service 4wd system" or something like that. Its because you have the front diff actuator unplugged. You can still drive it with no ill effects other than a light on the dash.
Or fix it, with a new disconnect, and see if everything works. At this point, I would not bother with used.
There about 118ish dollars thru ebay..
eBay link
There 150 up to 500 thru amazon
Amazon link
There 716 thru Advance Auto Part
Advance link
And many other sources (partsgeek, rockauto, madhornets, etc). Cheapest is going to be ebay, just be sure you are buying one with the actuator if its needed, or if its not needed, than its just playing the pricing game.
EDIT: VERY IMPORTANT! - Pull that intermediate shaft out. If you think you are having other 4wd issues, a lot of it can come from that intermediate shaft. The teeth on the inner or outer part break off, and can make it seem like the 4wd is not working, when the shaft simply needs to be replaced. They can be bought for 75 on ebay. Other sources are also out there.