If you have only 4 millions,and you want 5 players,then you will never find what you are searching! If you want a more versatile player,try Vasile Maftei(29 years old,at most 3 millions),he plays as a CB and RB.As a left back try Sylvinho(free) or Diego Placente(100k).As a poacher check Junior Moraes and Raul Rusescu.As a LWB check Julio Arca,he can play as left wing back,right wing back,left defender,central midfielder,left midfielder and right midfielder.In the beggining of the 2nd season you can get him for free.