How about this as a middle ground: use wood posts,
https://www.tractorsupply.com/tsc/product/cca-pressure-treated-wood-post-35-in-4-in-x-65-ft?cm_vc=-10005 like these, and then fencing steeples...with your hardware cloth.
You would need to borrow/buy/rent a power posthole auger (my local...