ICOCA + Haruka

Hi,

Need your help in clarifying my understanding of the ICOCA + Haruka.

I will travel into KIX (Kansai Airport) and going directly to Kyoto, thus i am planning to get the ICOCA + Haruka (roundtrip) combo, I will stay for two days in Kyoto and will travel to Osaka for a few nights.

I can use the JR Toaido line to get from Kyoto to (Namba) Osaka using the ICOCA correct? Is this the best route?

For my roundtrip Haruka, can i use the Nankai Limited Express as the return journey? If not, what are the lines that i can use. I will be at Namba area.

Thanks,
Anz