About the client that comes with heRO installer

[firecat]

In comparison with the original RO client (kRO + Sakray from kRO website), what files are included and what are not included/are modified in heRO installer and where can I get those files without needing a proxy?

I am quite aware that this server's installer comes with Sakray only, and that I'd have to download kRO somewhere, but I'm more concerned about minor files that could have been modified for convenience's sake and that I would only be able to get by downloading the full client.

Long story short, will I be able to play in other servers smoothly by just downloading and installing the original kRO in heRO's folder?

Thank you for sparing a brief moment of your life.