IMO if you want to stay away from gooseneck then a stacker is the only way to go. But that is only my opinion.
Plus you have to also account for toolboxes, tires, extra parts, plus the stuff that you will be bringing to accomidate yourself etc. etc.
Me personally will be getting a gooseneck trailer that will be around 53' to haul 2 cars and all the neccessities to go with to the track.