Gilbert- Both your farther and you have my deepest sympathy. The js aercoupe model looks good but is a most difficult project. The building sketches and cryptic instructions are worse than useless and factory help is no better. I can only describe the fuse contruction as like trying to re-assemble a banana after removing the fruit.
After all that work the flight characteristics are somewhat dissapointing. It flies like the original - just putters around.
Pity you don't live closer. I am looking for a good home for mine.