I remember I saw Wraith fighter somewhere on BCFiles,
you can get them yourself from battleclinic then convert them to BC using following tools :
- milkshape 3d (30days free / then you have to pay for it but it's really cheap, you would need it simply for importing SFC models and saving them to any format that Nifskope can read)
- Nifskope (for clean conversion to NIF)
- GIMP - for texture conversion to TGA format
- TGA tool - to add alpha channels
Then it's all about scripting, either someone could take over from you from this point or you could try to get them ingame youself, all you need is some basic training and BC SDK - package of tools for mods development.
I know all this might seem to you very hard but if you would decide to go for it I could provide you with a step-by-step instruction how lto do it, it ain't so hard ;)