hey the eup pack will replace mp models components, if you are using the most recent lspdfr by default it utilizes mp models mbase and fbase in the outfits.xml and assign these componets/testures to all police . for example older versions of lspdfr used the games default model s_m_y_cop but was not as cutomizable as an mp model
so long story short you can either pick each componet and assign them yourself or you can have a preset version and work from there just will take some time finding the componets and textures in the closet
Here is a file that sets the configurations for you and next time you are in the police station locker room if you are missing something you can add the componet # and texture # to your data file data/outfits later