I am preparing to have a new engine built and get a new transmission for the 68 mustang I am restoring. I would prefer it to be a stick shift but cant find ant manual transmissions only conversion kits. Is it unheard of to find a manual transmission ready to drop in or what? Is the only real option a full conversion kit? I know its necessary to get the clutch pedal and other extra parts for the conversion but do I really need a full kit for like $2600, or am I missing something?