Lamar Odom's trade to the Mavericks could be a great thing for the Kardashian family business ... 'cause TMZ has learned the family is now hoping to open a DASH store in Dallas.

Sources close to the K-squad tell us ... the family is thrilled that Odom went to Dallas because they have several cousins that live out that way ... and the fam is familiar with the area since Kourtney went to college at SMU.