Glad these are finally available, when I discovered them in the 2019 parts book I couldn't find any dealer that had them in stock / could order them - seemed like a ROW item, not meant for the USA ... glad that has changed ...
Confirming that $145ea is cheapest I have found at link above (Mercedes Stevens Creek in San Jose CA FYI)...
Most other online details are $155-165ea
PelicanParts surprisingly is $200ea
Thanks
@Sprinter man Sam - unfortunately don't have LB9 on mine otherwise I'd happily have a look