adding class,class type and characteristics for equipment by LSMW

I have got a requirment to upload equipment(+serial no),class and characteristics as in IQ01 tcode. Equipment details are in separate excel sheet and class and characteristics are in separate excel sheet. I had completed the equipment upload by LSMW - recording. Now I need to upload class, class type, characteristics for the equipment(+serial no). In LSMW for BUS3060 you have no choice in the method, message type and basic type: you get CREATE, CLASSIFICATION_CREATE and CLASSIFICATION_CREATE01 by default. This relates to the function module BAPI_OBJCL_CREATE_KEY. To use this I have to have internal key in table INOB which i dont have in excel sheet.

The bapi which meets to my requirement is BAPI_OBJCL_CREATE but this does not have business object(BO) assigned. To use a bapi we need to have BO in LSMW.

For each equipment i have 48 characteristics so recording will not be preferred method. If we have LSMW then we can add or remove any characteristics in future. So I am looking for bapi in LSMW....

Please do suggest me how to proceed.