Shipping and export tariffs should not double the price. I paid $30 tariff and $150 shipping for a set of 5 wheels
The markup in the USA for LR parts in general is insane. Often I've found it to be 5-10x more. Hell, LRdirect.com even delivers at least twice as fast as AB. Granted, thats comparing air vs ground shipping, but when I shopped at AB they could take 3+ business days just to ship