Help with Torsion Axle

I am going to order my axle this week
, any suggestions on the bests bang for the buck on a 2000lb torsion axle with mounts for breaks.
I would also appreciate any input on the specks that the company will require for dimensions.
The trailer frame will be 62” wide.
The rim / tires have a 5.5” backspace.
What would be the best hub to hub distance?
The starting angle?
Thanks to all, Dan

I would also appreciate any input on the specks that the company will require for dimensions.
The trailer frame will be 62” wide.
The rim / tires have a 5.5” backspace.
What would be the best hub to hub distance?
The starting angle?
Thanks to all, Dan