Does it matter what brand I get for trekking bars quality wise?
If you are in the $20 or thereabouts price range,
they are all similar , some are finished ,
Black or Clear anodized, a few dye the anodizing. [vs paint]
ITM and Modolo are Italian Imports , sourcing those in the US
may need direct retail importation from Europe
BBB is a NL company , they have a wholesaler, Bike Mine, in OKC
Your Local shop would need to open an account.
Wall Bike's stock is sold-out , several years ago, I got some Koga ITM. bars from them .