None Need suggestions/advice for leather jacl

So, i have to go get a new jacket for casual wear,but i dont wanna throw my old one out. So i think ill use it for a battle jacket of some sorts. But i have a few questions.1.What do i do with thr rips seen in the pictures? leave em, sew em, anything else?2.Which works best, the jacket+battle vest or just the jacket and 3. If i would modify the jacket with patches and/or studs, do you have any suggestions for a theme,placement or cool layout? Thanks allready guys