Stress free courier shipping silver to US from the UK?

[universalcurrency]

I recently had an enquiry about shipping a particular low mintage silver coin to the US.  Not having done so before I thought there might be a few issues for a potential buyer namely:

1. US customs duties and taxes
2. Any forward handling charges
3. Can any courier include the US side courier fees (unlike US postal service/Royal Mail)
4 Reasonable tracking and insurance cost or not bother if too costly?

 

Any courier suggestions? 

[Bigmarc]

I use this company for item from the US to here, never had a problem and assume they ship the other way. Handy for companies in the US that don't ship abroad.

https://www.shipito.com/en/

[SilverPlatinum]

I use Royal Mail International standard all the times (no tracking/no signature) to mail coins from UK to Canada at reasonable price, I ordered around 100 coins in the past 5 years and never had any issue and never lost anything.

For U.S., maybe you can add tracking option, but The Royal Mail is trusted (at least to Canada).