Ok this sounds mad but bear with me LOL! How is yours/hubby's money situation?
I don't know whether this is possible but can either of you afford a credit card and pay the shipping bill on it in USD?
The exchange rate is exceptionally good and you should take advantage of it if you can. I've seen at least one major high street bank offering 15 months 0% credit on new purchases as long as you send them the minimum payment each month.
$910 is roughly £450
450/15 = 30
Can you afford to pay £30 a month?
DO NOT USE THE CARD FOR ANYTHING ELSE!!!
If you think you might be struggling before the 15 month period is done, look to switch to another card which offers 0% on balance transfers.
Break it down like that and it might not seem as impossible for you, I hope this helps