Hello Mike welcome to permies.com
You dont have to double till or go all out to get a permie/perennial garden.
In that 30'X30' space you can plant 9 fruit and or nut
trees.
You could make 30'X20' (6 dwarf fruit/nut) trees and the 30'X10' vegetables.
So the question then becomes what type of veggies could you grow.
Lovage (celery), Collard Green Tree, mint, thyme, rosemary, oregano, sage, savory, seakale. orach.
There is also lot of self seeding veggies too.
You can just plant some daikon/tillage radish to do the tilling for you (3-4 foot carrot looking
roots but overall 6ft
root structure).
You can also plant fava beans and other to add the nitrogen to your soil. Now when it comes to browns, just add your
lawn clippings as the years go by.
Adding
compost is even better. winter rye (sept-april) will also give you
alot of browns.
Just remember to take it easy you dont have to all out, unless of
course you have the time and money.