Well, I "benchworked" the set-up described by Rob. It was a bit of a challenge getting the contacts in the right position (and I have to say I'm concerned about the long term positioning on those) but it worked like a champ! I will only need to set up these on four turnouts. This will be for "bull" sessions when running trains, sippin' some Cap'n Morgan and telling fish stories. Otherwise, this 30X50 double deck monster (50+ turnouts so far) is intended for hands on operation. But when the Cap'n flows and the BS flies, those key points need to work by themselves!
Thanks boys!