Well AP is a 'small' guy too. I believe they are family and a couple friends. They only have 1 cutting machine which is the reason it takes so long along with all the orders. Last 2 times I've talked to Ali, she was at her house taking care of her kid so I'm guessing the business end is run out of their house. They just do a very good job and make sure to add in those little touches like rounding/finishing the edges/corners and stuff like that. Really well made cages at a good price. Cant really beat it as that is pretty much what I want. They also offer so many options along with customization.
I honestly don't think there is any really 'mass produced' caging. I mean Boaphile is a guy or 2, AP is family and few friends, Constrictors NW is just Ed Lilly and I don't know about PVCCages but I would imagine they are probably a guy or a couple. But I get what you mean by small time, as in like you said, a hobby builder.
And btw how is the remake of the cage coming?