As far as ordering through dealer, EOPS list doesn’t specifically name the new model Blackhawk in 10mm but names New model Blackhawk in a dozen other calibers and also names 10mm in a few different models. It’s probably too new to have made it through last round of testing. You’ll have to ask around to dealers personally but I don’t think you’ll have any issues. It’s a single action only revolver with every other variant approved so not really a high risk item.