I found this Lionel Large Scale Gold Rush Special at a thrift store in DC. It was bubble-wrapped together with a loop of track. I wasn't even sure what it was at first, but, hey, it was only 20 bucks. Turns out it was a nice "little" train. It needed a few plastic parts which I have ordered from Brasseur Electric Trains.
I did get down to the basement tonight, but I was distracted by the Lionel G-scale 0-6-0. I have been trying to get it to run smoothly. Instead of smooth motion, it goes thwack-thwack-thwack-thwack. The idler gears wobble all over the place and one of the drivers was not squared. I did a lot of unsuccessful tweaking, then I took out the idler gears and just had it drive using the drive rods. More thwack-thwack-thwack-thwack. Now I am out of ideas, so I put the idler gears back in place and reassembled it. Success! No more thwack! Not sure how I fixed it, but I think that one of the idler gears must have been offset by one tooth.
So, now I have a fine running, fine looking "around the Christmas tree" narrow gauge train.