This entire valley is crafted as you have suggested, all on removable baseplates. The trick for me is making sure the seams among the various vignettes are obliterated when the whole vista is complete. As you can see, I had completely different intentions for this real estate through the years. Changing the valley was a matter of changing out the individual sections of the overall scene, after each separate piece was crafted, in comfort, at my worktable, then moved to the valley.
Is this what you were talking about, Coach Joe ?
FrankM.