Amtrak UK. Their website has an quote calculation form dose this mean a shipping module for Amtrak would be possible.
http://www.amtrak.co.uk/quote.html
<form name ="quote" action="cgi-bin/quotepage.pl" method="post" target="newWin" onSubmit="MM_validateForm2('Weight','','RisNum','Width','','RisNum','Length','','RisNum','Height','','RisNum','PCode','','R');return document.MM_returnValue;return openWin(this.target, 400, 410, true);">
<tr>
<td id="contact" height="30">Weight </td>
<td id="contact" height="30">
<input maxlength=3 size=10 type="text" name="Weight" id="info">
kg </td>
</tr>
<tr>
<td id="contact" height="30">Max width</td>
<td id="contact" align=""height="30">
<input name="Width" size=10 id="info">
cm </td></tr>
<tr>
<td id="contact" height="30">Max length</td>
<td id="contact" height="30">
<input name="Length" size=10 id="info">
cm </td>
</tr>
<tr>
<td id="contact" height="30">Max height</td>
<td id="contact"height="30">
<input name="Height" size=10 id="info">
cm </td></tr>
<tr>
<td id="contact" height="30">Service you require</td>
<td height="30">
<select name="service">
<option selected>O-Overnight
<option>F-Before 9.00am
<option>X-Before 10.00am
<option>M-Before 12.00am <br>
<option>S-Saturday Post
<option>SF-Saturday before 9.00am <br>
<option>SX-Saturday before 10:00am
</select>
</td>
</tr>
<tr>
<td id="contact" height="30">Delivery Postcode: </td>
<td height="30">
<input type="text" name="PCode" size=10 id="info">
</td>
</tr>
<tr>
<td colspan="2" id="contact" height="100">Amtrak provide FREE goods
in transit liability cover of £12.00 per kilo, and extra
insurance of up to £6,000 per consignment costs only
£3.50 per £1000 of cover to account holding customers.
</td>
</tr>
<tr>
<td id="contact" height="30">Insurance cover required:</td>
<td height="30">
<select name="insurance">
<option selected>0-standard £12.00 per kilo
<option>1-up to £1000
<option>2-up to £2000
<option>3-up to £3000
<option>4-up to £4000
<option>5-up to £5000 <br>
<option>6-up to £6000
</select>
</td>
</tr>
<tr>
<td id="contact" height="50" colspan="2"><a href="pdfs/domestic_conditions.pdf" class="bodylink">Click here to download
our Conditions
of Carriage, which apply on all consignments.</a> See below
for instructions.</td>
</tr>
<tr>
<td id="contact" height="30"> </td>
<td height="30">
<input type="submit" name="quotesub" value="Get my quote!" id="button">
</td>
</tr>
</form>
</table>