I normally like to display my models "in-flight". Planes are flying machines, so if you want to show them in their "natural environment" that's the way they should be displayed.
I don't like to drill holes on my models. I use 3 pieces of clear acrylic rod, glued to a base ( acrylic or other materials ) with epoxy glue. I position the rods to be in a way to balance the whole kit, then I use small balls of Blue Tack to fix the model. That way, I don't need to modify the kit with ugly holes.
Good modelling
Pino