Hi Bill,
Sorry to hear about your problem.
I checked with my usual courier firm, to see the approx. cost from the UK. I stated the package size as 200cms x 15cms x 15cms with a weight of 4kgs (8.8 lbs) quoted price approx. £50 (around 81 USD) 1-3 days delivery with £32 insurance ( I think its another £4 for insurance to the value of £250).
$300 (£185)

.....what a rip off

Ok there are packing fees involved but .......
and what a cheek, expecting you to pay for his 'efforts' ....not impressed. I have sometimes misquoted 'shipping fees', but always to my detriment....but I have never asked for more money to compensate. In fact if something sells at a good price I always 'upgrade' the postage service.
The seller should be able to find a more competitive quote, and if ethical...should send to you at no extra cost.
Regards David