Well, to start with, it is no longer a O Gauge Plank – it is now multi gauge with OO gauge track, magnet and ‘spratt’ height gauge added.
Although I have moved more towards O gauge, I still have some OO stock left and due to rising costs I may well use the OO as a fall back.
The only thing I need to purchase for the plank is a set of OO rolling roads.
I have Glued the original O Gauge rolling road Box to the Plank and will do the same with any new OO rolling road.
Finally, yes there is room for a N Gauge Track, if put under pressure by my son.