Mercedes doesn’t want to sell me a chrome key (G500, 2005, JP)

After the old key of my 2005er 500er was no longer particularly respectable, I wanted to order a new one at MB. Since 200x these are delivered in the quite chicer chrome case. Said done, Rohling arrived today. But now it was not the one with the chic chrome edge, but so a MB Vito/A-Class savings issue with black plastic edge (see photo). Incl. programming etc. the thing lies at several hundred Euros. Since I express m I didn’t accept it for the time being. Further research at the dealer showed, however, that for my Japan import 2005 G500 there seems to be no chrome version, but only the hard plastic vito variant (for the price and for a G500? Can that be?). I realize that my Japan key (probably) radios on a different frequency than the German keys. But why should the thing deswg. be executed in plastic? If there is actually no chrome variant gi bt, I can then take the plastic key and put it in a chrome case myself (is it on Ebay for cheap, cheap). Wouldn’t it be an alternative… even though I don’t have a chance at all at the purchase price. In this video https://www.youtube.com/watch?v=vLjskrAqEtM builds apart a nn chrome key. There are the side parts inserted. But with my black it looks as if they were poured with the case. Thus the conversion would be also n Is it possible…?