You did not mention the number of paintings on your shipping list; we returned to the USA with 3 canvases removed from their stretching frames and rolled in a tube which was transported as a carry-on. Not having the tube out of our sight during the flight provided peace of mind.
I'd recommend A1 Auto Transports white glove international shipping. Records and paintings are going to need some careful handling being shipped that far in order to avoid damages. Whoever you find to help with it, I'd be sure to look into their insurance policies. I'm assuming you're shipping enough stuff that it's not feasible to do with standard shipping and careful packaging.