That sounds like a great recipe.
Normally, I frown on a clean yeast profile in a wheat beer, but a lot of banana, clove, and bubblegum wouldn't do much for all the spices you threw in.
I would be very interested in the result.
EDIT: I forgot to mention that if the lemongrass works for you, seek out some lemon basil. It has no basil flavor; instead, it tastes like lemongrass--without the grassiness--and looks just like small-leaved basil.