Replace Leaf Springs?

[SCGatl]

Hi folks,

My 2017 Hideout LHS175 looks like it is settling down over time, and I really don't like the looks of the stock leaf springs. They are 4 leaf (if you can call the bottom short one a leaf) and while they are not visibly sagging, I would like to beef them up. Any suggestions on a source of replacement springs that would fit?

I also would like to change the tires to something more substantial, with a higher speed rating. This is a single axle trailer, so I really would like to have confidence in my tires.

Thoughts?

Thanks, Steve