KVCD is Accomplishing my greedy goal
 

I found the KVCD Plus template is the best among ALL KVCD templates (including KDVD ones) in all aspects (size and quality). I am wondering if someone can help me in accomplishing my greedy goal that I want KVCD Plus video stream with 2 switchable subtitles.

Is it possible to mux the KVCD plus video stream with MP2 (generated by headAC3) as MPEG-2 VBR and then burn it as SVCD. If it is possible, I need someone who can tell me how to put 2 subtitles into a SVCD.