Hi Bill
I work for Federal Express, this is what I'd reccomend.
Your best bet is to contact several carriers, they will walk you thru what will be needed and costs. I'd try UPS,Fedex,DHL.
Restrictions, duties, taxes, etc, vary from country to country, commodity to commodity. And these can change often depending on the political situation existing between the orgin/destination countries at the time.
It should only cost you some time to get a definative answer since all the biggies have 800 type numbers.
Shipping cost will depend on size/volume..as an example, a packaged guitar may go 20 pounds, but due to size it may be assessed as high as 40 pounds.
I'd say a good ballpark figure would be about $2 per pound.
(disclaimer, this is not an advertisment, I dont use us because of cost ;-) )
Gary