Those of you that spent a lot of time on the old Atlas board may remember a particularly remarkable job of doing the Westside Lumber Heisler in N scale, using a Kato 11-105 chassis. The individual's name is Gerd Ziller, he's still a very active modeler and also does some incredible live steam. His handle is "Waldbahner", same guy. West Side Logging in N.
He sent me a set of etched running gear parts for his Heisler, still have them. Wonderful modeler.
Pretty much everything you'll see in his Shapeways work directly ties to his West Side Lumber modeling, so you can assume this is the right version/era for that.