Yo...
@MrSkeen good to have you on board, another person with a solid plan... hooe it all goes well for ya... I'm jus thinking outloud,
but wouldn't it be easier to turn the soil and add ammendments now before planting?.. or is it for ease of watering and the blumats?.. ya stand to lose a fair bit of kit if it gets compromised (found)...
I've used a handheld auger which can be folded up,
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Then filled the holes with soil and slow release ferts before with some success Other than a couple of long dry spells I aint needed to go out to the spot as all the rain has provided all the water I needed!... And there are peeps on here that have grown and bred with Tao autos, which ya might wanna look into, if ya got regs and auto regs on the same plot how ya gonna know what's pollinated what, you'll be forever checking if plants from those seed are photo, fast photo or straight autos!.. anyways keep us posted and the best of luck matey...
Easy now!..