You got the weight figured out but Some things you need to ask yourself, Bumper Pull or Fift Wheel, Seperate Garage or open floor plan, walk around bed? On board generator, fuel station.
Fifth wheels are going to be heavier than a Bumper Pull. A Bumper Pull Toy Hauler will leave the back of your truck open for more cargo.
Open or seperate garage, the open floor plan trailers tend to bring the bikes into the living area. Do you want to be able to use the living space of the trailer when traveling. Some open floor plans makes that difficult.
Seperate garage floorplans kind of give you that man cave in the back of the trailer and can be turned into additional living space when the bikes are out. Walk around bed? You will find the wife will like a walk around bed. The only problem with this is a Toy Hauler with seperate garage and walk around front bed will be 30'+ and the weight can easily get over 10k.
Shopping is half the fun....
I down sized from my Toy Hauler To a smaller travel trailer and use a Rampage lift to get the bike in the back of the truck. I can get away with that because I only have one bike..That said....Never should have sold the Toy Hauler... It was a Work and Play 30WR or Now a 30WRS. Nice Rig but heavier than you want to go. With two Harley you would probably be at around 12,500lbs...The trailer Gross's at 13,800lbs...
2017 Coleman 300tq by Dutchman Toy Hauler. 34.5 feet long and under 10k Gross. 500 watt Solar 2000 watt Inverter, 1999 Ford F250 2WD 7.3 4R100 DP Tuner, S&B Cold Air Intake, Gauges, 6.0 Trans Cooler, Air Bags.