I spent a lot of time going through the alternate rom, stock rom and some other stuff I have from a ST rom I did long ago. My opinion is that most of what's in the game is already good so there's no point in replacing it.
So my plan of action is limited to:
Replace DTD - Done
Replace End Game Music - Done
Replace Klingon Multiball - In Progress. I'm not happy with the current tracks I have. Shoot To Thrill? lol
Replace Klingon Battle - I will probably use the Klingon Multiball music from the alternate rom
Replace Vengeance Victory - In progress. Sound clip I have needs a lot of cleanup
Replace Vengeance Ready - Maybe... I have something that will work.
Rob