I bought ONE new Nelson 36 sometime around 1987, when Henry was still making them.
A few years ago, somebody commissioned him to make another run of 36's from his stock of parts. Those were pre-ordered by Fast combat flyers. There has been a revival of Fast by a few die-hards using planes built by Yuvenko.
The chances of anybody parting with a Nelson 36 are slim. But you might find somebody who's selling.