Portrait prints made in pt or pd are beautiful, I am afraid you are making a mistake by doing them for your family, they might not want you to stop...
The prints I sent to you were both made with palladium only. One good thing about socorro paper is that it gives different tones depending on the temperature of the developer. If I use room temp potassium oxalate I get neutral blacks, if I use it hot, I get the warm tones. Is up to you, as you say try both or ask PF to send you a pt/pd kit. instead of one or the other.
I just got 10 grams of palladium from artcraft chemicals for $12/gr, I think this is a good deal and you might want to order each component and mix it yourslef, from my experience, when I first started with the kit I made too many bad prints, and just when I started getting some good results it was all gone! Talk about a frustrating experience.