Wow, 1/4 scale Corsair! Not sure how to scan in Ziroli plans....that's too big to go in my little scanner. I'm mostly a 1/2A guy.
There's a free Corsair .dxf download at
http://members.fortunecity.co.uk/slmohr/rcplan6.htm I'm sure there are others on the web as well.
Good Luck!