nice shop, i do like the front porch
the only thing i'll suggest, since you mentioned air conditioning...
partition your shop so your not cooling 2000 square feet of 16 foot ceilings
no sense cooling all your storage area too
up here i worry more about heat and while i have a 50x50 with a 30x50 upstairs
i only heat 20x30 workshop full time, i can also heat an additional 12x30 fabrication bay when needed
having part of my space heated all the time allows me to walk into 45* heat on those -10 degree days
it would break the bank to heat everything