It looks a little "fragile" to me. That angle iron seems mighty thin and there isn't a lot of it.
144" blade length is short. The blade on my bandsaw (not a sawmill) is 48" longer than that.
Still, I would like to have one. RTR services has a lucas mill for sale, that looks like it would be very nice as well, but it is about 3 times as much as this one.