You should be able to use the marketboard by now at your level.
You can take on and do pugilist at any point but i would recommend to level pugilist to at least 15 to be ready for when you hit 30 on Archer.
Archer/Bard all points are allocated into dex and pugilist/Monk is Str
Later on you may want to level Pugilist/Monk up to 50 fro cross class abilities, also lancer a must have cross class from lancer is invigorate.
This ability refreshes your tp, and is a definite must have.