Walt you just need a cheap rba and need to learn to build microcoils. Its super easy, then all you have to do is swap cotton, and rinse it out / dry burn the coil to change flavors.
That plus an MvP 2 is all you really need. Grab some 28 and 30g kanthal and some sterile cotton balls and your set! Don't mess with dual
coils until your comfortable (I prefer single anyway myself) and as long as your around 1.2 - 1.5 ohm on your coil (the MVP will tell you) your set to rapidly taste/swap flavors.
Not to mention dripping gives you some of the best flavor possible. Much better than clearomizers.