Originally Posted by ComPH
I am still not sure about the best way to go about the fork. One thought was to use a fork from non PX-10 bike of that era, which can be had inexpensively (the whole bike) or use a modern fork as you mention.
This fork would work quite nicely on that frame. The seller is a little Janus, but it is a fair deal for a fork, even after the shipping. ebay item # 3670081996.