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I've had trihulls as narrow as 60" and as wide as 94" but most seem to be in the 70 to 80" range from back then. Most fit between the fenders of the larger width roller trailers, but not all. Back then it seemed that most boats sat high and above the fenders, making trihulls sit much higher. An old bass boat trailer or any wide axle trailer might be the best ticket.
You want the boat as evenly supported and as low as possible on a particular trailer if you have rollers that aren't touching the hull, adjust them to contact the hull. Their not doing any good if their standing out in mid air.
as long as the clearance is there around the fenders, you may be able to put the trailer on jack stands, remove the axle from under the springs, and reinstall above the springs. this will lower the trailer by a few inches