If you are hell-bent on 433mhz then you could buy a module type radio ($150 and up)and fit one of the new multi-protocol modules ($50) and match it up to a basic controller ($60 and up) but you are back again to a low range unit.
There are claims of range in some adverts but if you look closely they are primarily meant for 50-100 metres but even then, terrain dependant.
You could make your own controller with Arduino, plenty of stuff out there but that also depends on your ability.
My original suggestion (2.4g) stands as the best for price alternative.