I currently don't have any of these beasts in my roster, although I liked too. Overhang and cost in that order are holding me back. I know I have clearance issues on my 096 run, maybe not on my 088. Anyone have a x-y matrix listing clearance required by beast vs track size ?
Remember, the larger the curve, the less overhang that you'll have on any locomotive. I have an O90 curve on my second level and a post that's 3.5" from the centerline of the track. The biggest overhang of my fleet seems to be the MTH Premier Big Boy at about 3.25", and it clears the post easily. The next guy that's about as close is the C&O Coal Turbine, at 26" long, it's the longest locomotive steam or diesel that I have.
I suspect you'd find that the LC+ 2.0 Big Boy would have no issues at all on your wider curves.