Hi Abhishek,
As there is no change, the way SRM interacts with ECC, it will work even with this setup with ERP_6.0 selected.
Please make a point that for every ECC EHP, SRM system type does not change unless there is something major e.g. BAPI change/ update etc.
It will work with the setting I suggested earlier. Please go ahead and make this setting, we are always present to help you out.
Regards,
Ravi Pachauri