If I were in the market for a used Shelby, I'd try to stretch into an 11 or 12. Prices are coming down quite a bit thanks to the Trinity, so it's not as big of a jump from an 09 to an 11 as it was a few years ago. You get the chassis improvements, plus the aluminum block.
The Coyote GTs are really nice cars, and I would love to have one, but there's something about having S-H-E-L-B-Y on your back deck lid that is special, at least to me. (Save me the replies about how it's not a "real" Shelby... I am well versed in all things Shelby, back to the beginning. It's a fruitless argument that I refuse to indulge)
Noobz: LeMans stripes is a more accurate name, and FWIW, the six cylinder cars only started running them to try to capture the looks of a Shelby. LeMans stripes are part of the character of a Shelby (of any year--although yes, I'm well aware that all cars did not have them). I'll keep mine, and flaunt them like the egomaniac that I am.
If one must remove the stripes from a Shelby, there's only one proper way to do it-apply enough right pedal to peel them off.