So, im putting drop bars on my xc bike that im converting to a gravelish bike. I bought a origin 8 Gary sweep drop bar. I would like to keep my current 1 by 10 slx setup on my bike and use road a road brifter. I'm not concerned about brake compatibility, however because of the incompatibility between road and mtb Shimano components, I'm unsure what to do as far as drivetrain is concerned . If not integrated shifters, would a friction bar end shifter for the rear mech work across disciplines? I currently have a 11-42 rear cassette with Shimano slx rear mech and shifters with no front derailleur.