Vaping is going to be hard. The e-cigs take a liquid and turn it into vapor. By the sound of it you are trying to take a solid and turn it into vapor. It would take a good amount of heat to do it.
Now you may be able to say blend or puree the tobacco into a liquid, and apply a good amount of heat with your easy bake oven idea. Just use a high wattage out door flood light bulb (non-flourescent) as they dont produce enough heat. That may work for ya.
Just a thought though. Im no engineer or good with making things, so oi dont know. lol
I love my DSE-901 though. lol
(*Disclaimer* These are my opinions and mine alone. It does not reflect the opinions of others and is based on my personal smoking enjoyment and experience)