Jim,
I was not trying to discourage you from sending yours out to be rebuilt. It's a good way to go if you can afford it.
BUT, if you do want to do it yourself, I would first see if the fulcrum pins don't come out easily. That was the case on one of my pins. The other was stuck like glue. If you have a stuck fulcrum pin, carefully cut the fulcrum pin on either side of the king pin using either a sawzall or cut off wheel, then sweat out the old threaded fittings on the a-arm pin ends and all... and throw them in the trash.
The piece of the fulcrum pin that is still in the the king pin will probably come out without too much fuss, especially if your fulcrum pin was frozen in the fittings.