The two month wait is no big deal in medical care today, that is how things work. But one thing that hasn't been mentioned on why you should go transperineal is the location of your lesion. You list a lesion in apex area, they can't even reach that tranrectally, they can, but not well with a good set of samples. In your case with location of the lesion, plus the past medical history, you want transperineal.