I would never convert an original pilot to the center balanced valve.
Scratching the idea to convert the pilot, more valuable advice. The purchase price was so low, resulting in my thought that there was not much to loose. The thread was a good read and will help if I decide to open up the pilot. I have a couple pages of the pilot service manual, but never been able to find a complete version of the manual.
If I am not able to find a converted pilot as time goes on, I will defiantly consider a trade. I would rather do than convert the pilot and send you parts.