I understand the feeling of using a non-home region site. Before I found VGCollect, I used a site called RetroCollect which was EU focused. The thing about VGCollect is that it allows options for every region, where as RetroCollect stayed focused solely on EU. If VGCollect weren't a completely superior site I might recommend RetroCollect, but the route of your problem is a feature that doesn't exist there!
I would just exchange rate foreign currency to get the price in US dollars myself.
