It took some doing but I made some progress. I still don’t really understand the linked objects tools but I was able to get it to work based on the examples. It’s still far from workable for your project but I think the technique might be there.
Click on any road tile. You can’t click when the “mover” object is moving.
Source:
I left the tile set in the asset for in the original zip in case you want to experiment with them or use them for reference. I know you plan on having the player click a building. The building could choose any tile to go to. You just need to link the target to the road and the road link. You also need to remove any previous target first.