There's a unit with a damaged rear casing for £79 on eBay - other than that they are all £250 plus.
Thankfully damaged headlights appear a rarity which is just as well as second hand units are just as rare. When I looked there were 2 damaged units on ebay and the 1 decent second hand serviceable light unit is on there for £4 more than a new assembly from Triumph, plus £12 P&P.

However if you do some serious searching, AIR, there was a member who had a similar situation recently, possibly 2nd half of last year, who managed to obtain a damaged unit from another forum member and I think was hoping to successfully remove and swop the front perspex piece. Might be worth searching out and finding out if he was successful.
