Should be: Nihongo wo benkyoushitai desu kara, nihonjin no tomodachi wo sagashiteimasu. 日本語を勉強したいですから、日本人の友達を探しています。

I think,it is corect.I understand your Japanese. or' nihongo wo benkyo siteimasu.desukara nihonjin no tomodachi wo sagasiteimasu.' your english translated to Japanese, nihongo no benkyo wo hajimetekara,watashi ha nihonjin no tomodachi wo sagasiteimasu. (my english is poor,so I might be wrong a little bit) I'm japanese,and I'm studying English and Chinese. keko

日本語をできる中国人でよろしいですか？

nihongo wo benkyousitai)))desu kara nihonjin no tomodati wo sagasiteimasu) = Since I am studying Japanese, I am looking for Japanese friends. -am i correct? :D