"It is difficult to get a cab here."
No, it's grammatically wrong. Adding 事件很难的事情 makes is correct, at least colloquially, though it'd be a different sentence.
location (在这里) needs to be at the front of the sentence. 打车 is an action and not the subject of the sentence, thus it would not come before 在这里. as to why 很难 cannot go at the end, I'm not sure. hoping someone can help out :c