I just finished another PermaCulture class that spoke of taking back desert lands and reforesting and greening the area. Creating swales for water retention on the land was the first thing we did and then brought in loads of mulching material.
We did not have the abundance of salt that you are dealing with though. Your chose of going with Plan B is a very wise one, looking at the future.
I'm sure you know exactly what you are doing and all your research is impressive. This is such an exciting project. One I'll be keeping a watch on.
Thanks @themerrylotus
This site is special. Id not have thought swales were important on flat sand! But then i witnessed the impact of salt and silt in tbe upper layers that cause the water to run over and not soak into the soil.
So actually they are very important in this setting
More organic matter is certainly on the shopping list its just been difficult to access in bulk so far..
Only rice hulls and coconut husks so far
Swales have been a literal plant life saver for me as well. I can't wait to see your land a year from now.