I was finally able to successfully switch the nose cones on Icestorm (Thundercracker) and Sunburn (Sunstorm) today.
I used the soldering iron method to heat up the pin that connects the nose cone to the fuselage then pulled it out with some needle nose pliers and used the same pliers to squeeze the pin back in with the new nose cone.
I was really apprehensive about using this method but after doing it I was surprised at how easy and effective it worked. I'm very pleased with the results!