Where are you looking at possibly getting your bases from? For starting out, I found myfreedomsmokes.com to be most useful for lower quanities of VG, PG, and Nic. They also have a ton of flavors in 15mL bottles around $3, which is great for starting out. Just a suggestion from someone who was in the same spot, but yeah, I wouldn't go with premixed VG/PG. It is pretty easy to use the website / app calcs to figure out exactly what measurements you need to make whatever ratio you want. And Heabob hit it dead on, flavors are almost always PG based and Nic can be whatever ratio you order, so that is going to throw you off if you don't mix it all yourself. Hope everything goes well!