Couple of things to ponder . . .

Trailers are more than mere toy toters, they are also toy _storage spaces_.

If you enclose the majority of the "A" frame section, you increase the volume of the dry storage area and also reduce the amount of power needed to pull the thing down the road.

Whether you make your trailer a "V" nose or not, add a rock shield across the front - 24" wide 1/8" aluminum plate would serve nicely.

Photo is my store-bought "V" nose 7'X16' tandem axle model airplane hauler.

My model airplane hauler _puller_ is a 2003 E-350 Extended Super Duty van with the three rear bench seats removed and stored. Makes room for a full 4'X8' sheet of half inch ply in the back, and I can haul a _lot_ of stuff in the van.