Wouldnt be hard to whip up a new fuse from scratch , or build one ' on ' the wing .
Slip the sides on , glue in nose formers etc , then go aft, keeping it aligned.
oriental in search here should find the plan , for General Information .
Having ' the bits ' youd just throw a ruler on THEM , might be more integrated than the current Fuse if its got splits & cracks/ coming undone aft ?? .