Yes u shd go for RCT.it can range from 2.5-5k depending on clinic to clinic after doing RCT u shd place a cap above the RCT treated tooth as it is weak.the cost of the cap cn be frm 3.5-9k depending on the material u select.braces cn cost u from 18k to 1 lak depending on metal, Ceramic or aligners u select.
Next Steps
consult the doctor n ur area fr more details.get ur braces treatment done from an orthodontist