Construction will begin soon--and by that I mean probably months down the road, and it's going to take a very long time for the road to be finished. Years, probably. Here is my compromise: we will begin our end of construction in the mountains, where it will take the longest. If you're still not ready when that's done, we'll move to Caer Glaem and begin work there. Once that's all done, we can discuss terms and precise locations of the road in your area, and negotiate about the river, if we haven't before then. But it won't be hard to make sure your part of the road is the last part worked on. Nobody needs to stake any claims anywhere, and we're not putting trade on hold any longer than we must. I'll just have a great lot of contractors angry with me, but better than they have a lot of elves angry at them.