Sign Barboianu from Universitatea Craiova, romania, great RB/RM, young, strong, fast and resonably cheap. If you'll sign him he will be your star player.
two guys from celtic reserves:
perrier doumbe is an RB
koki mizuno is a RM.
you have to loan mizuno as he does not want to join but if you say in the loan deal that you can purchase him for 20k then they should let him go and buy him when he is happy at the club