Yes sir. A nice clean stave can expedite the process greatly. I've made one in a week working a few hours a day from stave to finished bow. I really wanted a new one for deer season that yearpardon the interruption: log to stave takes the time. Wood needs to be dry and the environment can effect drying time.
Once it's dry you could be shooting in a weekend. Glueing tip overlays has some wait time and adding multiple coats of a finish requires adequate drying time.
Plenty of people attending traditional jamborees like MOJAM (Missouri) or OJAM (Oklahoma) come with nothing and leave with a shooting but unfinished bow. Unfinished=needs surface sealer/finish like polyurethane