Deer's Head is a nickname, this was the original Deore XT line which was launched as a Touring gruppo in ?1980? before it morphed into the Shimano Mtn. bike gruppo. Sheldon Brown has an '82 catalog that shows the whole lineup:http://www.sheldonbrown.com/shimano1982/pages/26.html but the '82 looks a little different, and newer, than your FD. But then, I could be all wrong...
Woodrup is a fine make, some would say it's the "better" of the 2 big Leeds-based builders, the "better known" being Bob Jackson, but I won't take sides in that: I'd be happy with either one! BTW, Doug Fattic, highly regarded frame builder in Michigan, did some training at Woodrup, AFAIK. A good shop should be able to bend that hanger back as well as correct any dropout misalignment, so it'll be good as new...excellent score!