Around $650 depending on spec before shipping and about another $150 for shipping. That for me in GBP equates to about £325 and £75 for shipping which i personally think is an absolute bargain considering the current USD exchange rate at nearly 2:1. And when you consider the Oxalis 50 is £160.
The Oxalis 2x2 is €899 ($1200) and prefabricated is €2000, in no way am i comparing the to models mearly just highlighting my earlier point.
For the cost of the oxalis i could nearly by 2 beams.
However thankfully MHester came to the rescue with the excellent Black Magic V2 and i'm building 2 BM2's for the price of one Beam
