Geo,
I've got an old mod gathering dust in the download sections (the 'D-Mod'), you are welcome to use/incorporate/change any of it (new ship classes, anti boarding party weapons etc), as well as the Mount Mod.
The D-Mod had lots of 'extra' weapons as well as some funky facilities. (Decoy missiles to soak up PDC, shield skipping missiles, low damage weapons that can strike VERY far away, Shields that incorporate PDC, regenerating engines, solar engines, Knowledge shrines, etc, etc, etc,).