I recently purchased a pair of CL shoes from Diabro also. I believe the shipping was $24 and it arrived very quickly. They did however screw up and sent me the wrong shoes.
Their CS team emailed me and said that they would mark the item as a gift with $50 value so that I wouldn't pay any fees. I was not charged any taxes.
I'm not sure. They declared $120 for my item. You might want to ask them. They seem to be quite accommodating. Perhaps you can ask them to declare it for a lower value if you not comfortable.
Just wanted to add - I had a great experience w/ ordering from diabro.net
The package arrived w/in 5 days and they really do try to do everything so that you don't pay customs.