(I only recommend things I’ve tested myself, so this was just a “might work” 
– but glad to hear it did, so now you can recommend it to others! 
)
Stacking them is a bit of a franken design, but I don’t see why it wouldn’t work if you get a good connection.
If you feel adventurous and would rather desolder it, it’s easiest to just sacrifice the original socket – use side cutters to cut off the socket pins close to the PCB, and once you’ve gotten rid of the plastic bits, heat one joint at a time and push pin & solder out with some suitable tool (toothpicks work, see here). But you can do that later, once you’ve finished the rest of the build and tested it.