Hi Omkar,
Can you specify what is path in TA SICF that needs to be activated and it not present in your test NetWeaver ABAP system? As per documentation it is service called: /default_host/sap/bc/webdynpro please double check if it is present in your installation.
To your 2nd point. Actually none of test versions of NetWeaver have applications like SD, FI, .. installed in. As you said you need to have full flown SAP ECC installation or IDES system to run those. There are some companies out there which offer IDES access. However some of them are not SAP partners and their services are most likely illegal. Be careful while dealing with such a sites.
cheers
m./