For your price point of around 2K, I'd probably suggest a Liberty Lincoln Series, an Amsec BF series, or a Fort Knox... I know the Liberty & Amsec can be had around your price point and large enough to fit your needs, and a smaller / lower end Fort Knox might be possible, but you'll have to get a dealer quote for a Fort Knox. Graffunder is excellent and probably one of the best gun safes on the market but most likely out of that price range for the size you require. For similarly priced offerings from Liberty and Amsec at the $2K mark I'd lean towards the Amsec BF because of the better insulation, better door, and external hinges compared to the Liberty.
Unfortunately, at the $2000 price point anything large enough to hold rifles is only going to be an RSC (residential security container)-- and not a true safe. It will only slow down those who are motivated. It will probably be enough to stop the amateur smash-and-grab guys but poses no difficulty to a pro. Just about anything rated RSC can be fairly quickly and easily defeated by a motivated person with a fire axe in under 10 minutes... or less. There's a video on a safe company's website showing two of their guys prying open a fairly well known manufacturer's RSC (i.e. gun safe) in less than 2 minutes.
To get something stronger than an RSC (i.e TL-30 burglar rated or better) that is large enough to hold rifles, you're looking at no less than $5000 or so.