Mike, seems to me that if all you have is the fuse the you've only got about 20% of any WWI biplane in terms of the effort involved. Still for 120 pesos the price can't be beat!
On the plus side, since the two SE5a wings are the same and of equal cord cutting out the 30-40 (50?) ribs shouldn't be too painful.
I'd recommend you find some online 3-views and then just work off of enlargements of those.