is it possible to make it so that you can play as her being the PC?For K1? I could release such a mod I guess, but I'm not in any rush to do that seeing as V2 of the current mod hasn't even come out yet.
  You could make such a mod for your own use by adapting the existing files, but that would require hex editing the head mesh to change the default texture and extracting a 2DA file from the game via KOTORTools. I guess you'd have already done that if you knew how, so a less arduous way would be to utilise one of the existing K1 Twi'lek PC head mods for the extra bits you need. Grab Ferc Kast's Blue Twi'lek as PC (
http://knightsoftheoldrepublic.filefront.com/file/Blue_Twilek_as_PC;89752) to use as the basis. Do the following: 
 Extract k1_mission_vao_as_darth_talon.7z into a temporary folder
 Go into the tslpatchdata folder
 Rename the TGA files as follows:
 PO_pmission.tga -> PO_Talon.tga
 twilek_f92.tga -> twilek_f10.tga
 P_MissionBA01.tga -> TalonBA01.tga
 P_MissionBB01.tga -> TalonBB01.tga 
 Open changes.ini with Notepad. Select everything (CTRL+A or Edit->Select All) and delete it. Copy everything inside the code box hidden inside the spoiler tag below and paste it into the INI file:
 [Settings]
 FileExists=1
 WindowCaption=[K1] Blue Twi'lek as PC (Darth Talon Conversion)
 ConfirmMessage=Would you like to install this mod?
 LogLevel=3
 InstallerMode=1
 BackupFiles=1
 PlaintextLog=0
 LookupGameFolder=1
 LookupGameNumber=1
 SaveProcessedScripts=0  
 [TLKList]  
 [InstallList]
 install_folder1=Override  
 [2DAList]
 Table0=heads.2da
 Table1=appearance.2da
 Table2=portraits.2da  
 [GFFList]  
 [CompileList]  
 [SSFList]  
 ; ================================================== ================= 
 [heads.2da]
 AddRow0=heads_row_192
 [heads_row_192]
 ExclusiveColumn=head
 head=twilek_f10
 headtexvvve=twilek_f10
 headtexvve=twilek_f10
 headtexve=twilek_f10
 headtexe=twilek_f10
 2DAMEMORY2=RowIndex
 ; ================================================== =================
 [appearance.2da]
 CopyRow0=appearance_row_p_fem_t_sml_01
 CopyRow1=appearance_row_p_fem_t_med_01
 CopyRow2=appearance_row_p_fem_t_lrg_01
 [appearance_row_p_fem_t_sml_01]
 RowIndex=97
 ExclusiveColumn=label
 label=P_FEM_T_SML_01
 normalhead=2DAMEMORY2
 backuphead=2DAMEMORY2
 modela=PFBAS
 texa=TalonBA
 texaevil=TalonBA
 modelb=PFBAS
 texb=TalonBB
 2DAMEMORY3=RowIndex
 [appearance_row_p_fem_t_med_01]
 RowIndex=98
 ExclusiveColumn=label
 label=P_FEM_T_MED_01
 normalhead=2DAMEMORY2
 backuphead=2DAMEMORY2
 modela=PFBAS
 texa=TalonBA
 texaevil=TalonBA
 modelb=PFBAS
 texb=TalonBB
 2DAMEMORY1=RowIndex
 [appearance_row_p_fem_t_lrg_01]
 RowIndex=144
 ExclusiveColumn=label
 label=P_FEM_T_LRG_01
 normalhead=2DAMEMORY2
 backuphead=2DAMEMORY2
 modela=PFBAS
 texa=TalonBA
 texaevil=TalonBA
 modelb=PFBAS
 texb=TalonBB
 2DAMEMORY4=RowIndex
 ; ================================================== =================
 [portraits.2da]
 AddRow0=portraits_row_po_pfth1
 [portraits_row_po_pfth1]
 baseresref=PO_Talon
 sex=1
 appearancenumber=2DAMEMORY1
 race=6
 plot=0
 appearance_s=2DAMEMORY3
 appearance_l=2DAMEMORY4
 forpc=1
 baseresrefe=PO_Talon
 baseresrefve=PO_Talon
 baseresrefvve=PO_Talon
 baseresrefvvve=PO_Talon
 ; ================================================== =================
 [install_folder1]
 Replace0=twilek_f10.tga
 Replace1=TalonBA01.tga
 Replace2=TalonBB01.tga
 Replace3=PO_Talon.tga
 Replace4=twilek_f10.mdl
 Replace5=twilek_f10.mdx
 Save changes.ini
 Extract k1playabletwilek.zip to a temporary folder
 Go into its tslpatchdata folder and copy twilek_f10.mdl, twilek_f10.mdx and portraits.2da
 Paste these files in the tslpatchdata folder you extracted from k1_mission_vao_as_darth_talon.7z
 Run TSLPatcher.exe that you extracted from k1_mission_vao_as_darth_talon.7z to install the mod 
 That should work.