THIS IS A MOCK-UP OF MY NEW - 10 SPEED SYSTEM (on a used frame here at my shop).  This customer wanted me to include the rear disc brake. If you want to convert YOUR  OCC Stingray to a 10 speed - you will need to contact me in the form below or phone me, as each project has different specifications.  So I must talk to you directly before I can send you an estimate for your [specific] system.  Costs will start at $449 and up depending exactly what is wanted.