I am going to buy a topper and maybe a used one if the price is right.
Will a topper from an '07 fit my 2010?
I had a Raider Nomad and I'd like to get another one. But there are other nice toppers out there that have flush glass.

 

I don't think the bed size has changed for those years....

 

Bed and cab are the same (for your purpose) from 1999-2011. You can use a topper from any year SD.