It's a nice idea, but there are already other websites that have covered that market - rvparkreviews.com is the one I use, and I've found it to be fairly reliable. Those work better, too, because everyone - not just Airstreamers - use them, so they get a lot more reviews.
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel
Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab