Hi Paul,
Similar to you I used to have nearly every NBL card and recently sold them all.
My piece of advice is to auction them on ebay, do not put them as Buy it Now. There are a handful of die hard collectors out there that will duke it out.
Essentially I sold my autos for what I thought were on the high side, they were sold within hours and then they went back on ebay weeks later and the new owners basically doubled there money.
One thing I can say about the Loggins/Gaze auto is that was one of only 2 NBL cards I never found! I think you'd easily get $600+ for that card. I never even saw a real one in over 7 years. 1996 was the last year of Futera and they went out of business shortly after the NBL release so only a handful of them ever got redeemed.
The rarest find these days in the #55 Tiny Pinder from 1992 stops if you have it. Long story but they were recalled by Stops and only a few survived.
Hope that helps