I am a member of the HAMB and there is always great interest in 'barn find' cars. There are a lot of members over there that appreciate stock original cars and understand the historical significance of original cars. There are many threads about survivor cars and many threads about restoring antique race cars and historically significant hot rods and customs. They also stick to the pre 1965 theme over there. Some builders are very concerned on using original parts, materials and hardware just like AACA restorers. I guess I like it because it is all pre 1965 and there are no modern cars on there. I don't consider any car after about 1970 to be antique. I understand AACA has its 25 year guideline but I don't care to own a 1988 anything and find it hard to consider something of that age antique or classic. Here is a link to a thread about a barn find survivor hot rod built in the late '50s. The owner kept the car original to the build. Much like the above Stutz or any other HPOF car.
http://www.jalopyjournal.com/forum/threads/snoopy-model-a-hot-rod-survivor.942245/