Regarding Lord Caitanya's danda, it was broken for good. So after Puri, He never took danda. So for painting Him as sannyasa, it depends on the time as to whether He had danda or not. The eka danda is all right, as in the Sadbhujah picture I sent. Do not be concerned with how the Mayavadi sannyasi dandas are wrapped because we are not following them.
Letter to Jadurani dasi, 8 November, 1973