Hi there
Please note that the following
threadregarding multiclassing a monk.
You are basically asking for fighter/monk and possible PrC later which cannot be approved. You can take fighter levels now and apply for a CDQ ones those requirements are met or decide to go monk only.
As faras the bio is concerned it is fine, I would just suggest that you maybe ad the city/town where he grew up as many people would ask that from your character.
Let us know what you decide.
Thanks