NO worries Foglefar, I was going to go down to the triumph shop tomorrow and price up a new one for you.

From what I can tell the following links give an indicative price on new parts.

http://www.worldoftriumph.com/section.php/4276/1/parts_locator
And also the bike bandit
http://www.bikebandit.com/2010-triumph-speedmaster/o/m18752

However I have seen the full right hand assembly of brake master cylinder, brake lever plus all the wiring for US $100 on Ebay and the wiring from $26 to $85, which includes the plastic housing with start switch etc as shown at very top of this post.

These parts are dependent on either the bike being an insurance right off (dropped, stolen or crashed).

The best way to get hold of these parts is to go down to your local bike shop and ask if they have any insurance right off’s in and if they are willing to sell parts or get a list of bike breakers and see if they will contact you when they get a Speedy\America in.

On a different note you can see the chrome body detail in this picture from the one above so it must be a speedy 2011 detail, although I can't find the part yet, maybe its still to be released
http://www.pure-triumph.com/products/769