Jason,

In your kit there should be some lite ply donuts for the stab. They glue to the inside the fuse and the stab housing goes through them and the donuts should fit tight to the stab housing. The loose holes on the fuse is so you can properly align the stab to the wing and fuse and the donuts hold the housing in the correct position. Once everything is dry I would make sure all gaps between the fuse and stab housing was filled with epoxy. Just a side note the wing tube housing is done in a similar fashion.
I hope this info helps


Larry