http://www.scioltichocolates.com/ (arrogant folks tho)
I know more but can't think of them now, will make a note and get back to you soon with more.
The girls at Cocoa on Ecclesall Rd may be able to help http://www.cocoawonderland.co.uk/
Perhaps worth contacting Painter & Decorators to offer your temporary services?
We might consider you if we got a big job on. Sub-contracted of course.