Honestly I've never tried a forwarding service from the US side (I have for Japan with Buyee which has been handy). Would like to know more, especially if there's any issues in relation to VAT/customs (especially as Rightstuf has a pre-paid VAT setup for FedEx so no custom notices appear from their webstore anymore).I use forwarding services like Stackry
most places have free shipping within US after a certain amount e.g. Rightstuf is free economy US shipping if order is over $50
so send that order to forwarding service, they sent it on at usually a much lower shipping rate without US sales tax