Oof no worries here - you are in great company of thousands of ladies that do NOT believe in letting babies cry it out!
I think that is a good idea to start with just bedtime. After he gets used to falling asleep at bedtime in his crib, move to one night waking, then another, etc. Then at some point you will need to not nurse him at one night waking, then another, etc. The idea is to eventually get him to where he can put himself back to sleep if he wakes without your help whatsoever.
You will see protesting, maybe even some sleep regression, especially at this age where he is much more able to tell you he is NOT happy with the change, LOL! Did you read the FAQs in the PU/PD section? There is a lot of great advice on how to do it properly, etc.