Maybe wear it a few times and take it back to B&R if the fit issues don't settle out?
I like the color and cut in general, though!
Ooooof, that's pricey. I've an excellent alterations tailor who charges $70 total for working sleeves and $30 for non-working. I generally avoid rtw working sleeves as well, though I'd probably make an exception if I ever came across a jacket I really liked.