But you can always ask 
He’s a great guy to talk to. He won’t pop over to Portland, but they do ship them (easier because modules) and at least you’d get crossover parts to exchange and instructions. They also offer a 4 weeks return option for a fee of a few hundred euros plus shipping (for my model, which is the second-most expensive one, 18K for the pair with my options; they start around 2K for the pair), which seems more than reasonable for built-to-order models. Berlin is worth a visit, anyway 
His nerdy “showroom”:
Assembling at home:
