1-Go slowly one step at a time. When the first step produces results, it will be easier then to proceed with the other steps, whatever they may be. It will be a kind of snowball effect.
2-Maybe the simplest would be to stop all sugar and substitute with un-sulfured blackstrap molasses. What I would expect to see from using the BSM is an increase of energy. Seeing that, your father may be encouraged to try something else. You got good advices from moreless and re-read your thread http://curezone.com/forums/am.asp?i=1390976
and read my post into which I talk about the benefits of BSM.
3-About the ML alkalizing drink. Make it for yourself, or if too complicated for now, make a reduced version for yourself and share some with your father. I think he might be better inclined to try and accept it if he sees yourself drinking it while chating together.