Hi guy!
A bit of a toughie to answer.

I've read all the other responses so far and for the most part I agree with them.
If I could go back in time and convince myself to not pick up the first cigarette I would. But I can't but I have managed to get off of them by using e-cigs.
Now having said that, I really enjoy the tastes that the eliquid offers. I hardly touch tobacco flavors anymore.
Making your own eliquid isn't that difficult. There are precautions that you should take but as long as you follow those precautions (always) you'll be fine. Do a lot of research on DIY before you attempt it though. Once you get by your 5th post, and the server resets, you can post in the DIY section.
As for Nicotine, if you don't need it you'd probably be smart to vape 0 nic liquid. Why let something put a hook into you? But if you need it to replace something else (looking at Dusty's edit note there) then maybe.
As for your Dad, Yes take him to a local e-cig store. Many places offer free tastes of their liquid.
If you two do decide to jump in, start small. The hobby can get expensive fast if you let it.

(oh yeah, I need to apologize to my bank account again

)
Welcome to ECF and we'll be here should you need us.