You can get a single DIN dash kit with a pocket under the radio.
A 9807 is nothing special from Alpine. There are any number of current model head units that would sound better or at least equal. If you got a head unit with better sound adjustments that will skew it even more in favor of a lot of choices. I'm biased but I trust Clarion for sound quality. I've had the CZ702, CX501, and now the NX603 in my car over the last 9 months and they all sound outstanding with all EQ settings off or flat. I use a JBL MS-8 DSP to tune my system, so the head unit is a transport. NX603 is $999 MSRP.
You may like the Pioneer AVH-X5500BHS. It's got a 7" screen and a decent equalizer, plus it does half-assed time alignment with the Sonic Center Control.