if you feel like taking a slight risk when you import a marker, make sure the shipper doesnt call it a gun or marker on the customs form, and lower the actual value of the item to like $40 or something, that way you avoid the hefty taxes applied to online shopping.
I recently imported a brand new etek2 and overall it cost me £370 (£350 for the gun + us to Uk shipping and another £20 for parcel force to take it from the UK depot to my house). Just be aware you will have to pay shipping twice, US > UK, then UK > Home.