Apart from RG23A/C Part 1/2 ,I am pretty unsure if the following reports/forms exist in standard SAP :
1. Subcontracting challan ( 57f4 form)
8. Form IV ( separarate list of materials for which 0% excsie has been charged owing to vendor exemption )
ER 4,6,7 and Form IV is not supported in SAP.