Hi, Jet, and welcome to Air Forums.
The product linked above... I could be wrong but I don't think it's going to fit well. Your question is a good one, but I've never come across any such product that was made for our vintage of Sprinter. In the past year or so, I've gone trolling for a number of doo-dads because some of the aftermarket sellers warned me that all products for T1Ns would be discontinued as soon as we were 10 years past their most recent manufacturing date, which is essentially right now (2016, as the last new T1N rolled out in 2006). They had a "get it while you can" advisory for a number of products some of which were already sold out by the time I made inquiries (e.g., don't even think about trying to find those aftermarket sun visor swivels).
Anyway, in my searches, I never saw anything like what you are looking for, at least not offered by the usual suspects. As to whether some generic version would fit... that I don't know either. This probably isn't much help.