There is this unsightly obstruction above my shelf RR which needs hiding. I am deciding between a 5 mm plywood shell with building fronts or spraying the whole area in ISO foam and carving a hillside.
Bare in mind my approach to RRing is somewhat casual, only looking to hide ugly,
If building fronts in mind, recommended sources?
Site as it is today. This town covers a series of 16' long staging tracks:
Pre layout construction view of drain pipe when train room was a shop: