Did you take a look at Tower Hobbies? They often have some pretty good sales and offers for some reasonable prices.

I had drafted a reply earlier but didn't send it. The phone rang and I got distracted. Anyway, what I would suggest, for indoor flying, is a good, foam, either biplane like an Ultrafly Furious, or a good low wing foamie like the Charger. Both are pictured below.

Whatever you decide on, for indoors, slow and low is the key. Good control at low speeds is the way to go.

CGr.