07 Prius Info Display and Radio Questions

I just bought an 07 Prius and I love it! However, the radio and information display were stolen out of it. So i was looking to replace them. I wasn't looking for anything fancy I was just looking to put a factory setup back in it. I was trolling around on eBay and I think I found what I need. But im not 100% sure and the prices seem pretty cheap so I don't know if there is something wrong with the stuff or what. So if somebody can tell me if its what I need and if there is anything I should watch out for that would be great! The links are attached.