Shovel and wheelbarrow to remove the topsoil from the first terrace, move all the subsoil as you want, then use the topsoil from the second terrace to finish the first. Just like double digging beds. You will have to move the first terraces soil up the hill to the last terrace.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus
Any reason why i should start with the bottommost terrace?
While terraces are not a swales they still do catch some water.
Brad lancaster says one should start the rainwater-catchment earthworks at the top of of the catchment area.
I think the logic behind it is that if you start at the lowest point, if has a lot more water to handle
than when you first do the higher catchment.