I like the Bigman more. It seems to be more versatile by having more detail in the mids. I have the Nordstrand 5.2 in my custom Utrera and it sounds great too.
I wonder if the AG 700 will sound a little bit brighter in the treble with the bright boost. Given that Aguilar amps are smoother in that aspect. It would be nice to know the frequency of the bright boost when used.
You can check the Facebook page Utrera guitars. He ships to the US and around the world . You only have to pay extra charge when it arrives at US Customs. I have one of his basses.