seatpost mount

This is my 1st project, any reccomendations? i am thinking about getting a 2012 SkyHawk GT5 66cc Kit and a 2 Stroke HD Shifter Kit jackshaft for my 26" Mens Schwinn Southport. if you have any suggestions or warnings, id realy love to hear your opinion.

I have a racing bicycle and I would like to modify a bmp friction mount to attach to the seatpost instead of the seat stays. I am looking for a clean look and a bit lighter. Has anyone here done this? I do not have a machine shop so I am a bit limited in what I can do. Thanks for suggestions