I'm in the same boat as the OP, restoring a PX10.

I just ordered a pair of Gommitalia Champions from BikeSomeWhere last night ($60.86 shipped), based largely on Road Fan's recommendations in C&V.

I was also considering the lighter and slightly pricier Schwalbe Milano's @ 250g & about $35-40 (vs. 280g for the Gommi's, 295g for the YJ), which I believe Chombi had positive things to say.

I also considered a hybrid between a lighter, less puncture proof tire up front (Milano), and a cheaper Gommi/YJ in the back.