So luckily in Indianapolis, Givi had a nice display (and some other brands, but the Givi stuff seemed the best to me). Phil from POC and I looked at a few bags and determined the Givi T435 Voyager scooter bag would be about right, but we didn't have the Blur there, so he said he'd order one and see how it fit.
He did, and it looks pretty good on the bike (photos below). It's the perfect size, and I guess there's velcro on those tabs, so I need to attach some velcro to the scooter (where can I find orange velcro, ha). I kinda wish it had a map pocket on top, but I can rig something up for the rare occasions when I need a map. It also comes with a shoulder strap so you can carry it around.
I'll post more after I've tried it out, but it looks like a good fit and the velcro will make it easy to get to the gas tank. A lot of scooter shops and MC shops carry Givi, but let me plug Phil at POC scooters (www.clevelandscooters.com, 216-737-0700) , since he's a good friend, does a lot for scootering here in the midwest, he has good prices, and he was good enough to send me photos. : )
Here are the photos:


B.