Need advice on converting my 65 coupe to disc brakes. Does anyone have any pointer or helpful suggestions?

 

Check with Ford Racing. I believe there was an option that year for at least front disc brakes. They should offer the kit. Your local Ford dealer may even be able to find the parts for you. Or, ask Steeda and Racer Walsh who have both raced Mustangs for many years. Also try these guys who specialize in older restos: www.karmustang.com

www.steeda.com
www.racerwalsh.zoovy.com

Good luck!