need bottom rail for Monarch mirrored door pics are top and bottom view

Thanks for posting. It's a bit tough to tell, but I believe these tracks have 'raised' rails for rollers that have concave wheels. Is that correct? If so, see our 47"  23-270 and the other-sized variants I have listed on this page. Note that the overall width of these tracks may differ than yours, as the manufacturer narrowed them to cut down on materials used. However, the distance between the rails themselves should be the same, and this matters most for compatibility. Please compare and let us know what you think.

Profile view of bottom concave roller track