Amazing endeavour! I am excited to see it develop.
I think as long as you watch those spots where you had to work around the pines for signs of erosion, you shouldn't have any issues.
And as to handwork over heavy equipment, I love the idea of working with the shovel and pickaxe. I also love
splitting wood myself, with a maul on a block. But if there's an electric splitter that someone less physically capable can operate reliably instead, it lets me do something else.
Also, time is a factor in much of
permaculture, in terms of getting the soil life accomodated. Nothing happens instantaneously, so the faster you can get the hydrology and sediment trapping topographical features working for you, the sooner the system starts building itself.
Good luck. Great pictures. Keep up the great work, and please keep us posted!
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein