No problems at all on such a boat. Mine is a 4.75m Quintrex and the DR suits it well.
Installation is as simple as drilling four holes and screwing on the base plate into which the DR slides and locks into place. Nothing complicated about it. I have used a bit of backing timber to ensure that the stress on the aluminium side deck was spread over a wide area but again, there are no alligatprs in doing this.