What is the ideal set up for hauling a 53ft dry van?

Get you a spread axle trailer.

 

The only time I've run into that "10yr" rule is at paper mills, picking up heavy roll stock.
Not to say others don't have it, but that's where I encounter it.

The reason for it is they have to have some kind of cut off.
Some ragged heaps out here.

That roll stock is heavy. You might get 6 rolls, spaced out. That's stress on an unkempt old trailer.
THEY'LL SNAP IN HALF.

 

I have a trailer now that's older than 10 years. I only ran into that issue at that one paper mill in Shreveport, LA. I can't think of the name. The weird thing is, ive hauled heavier loads than the average paper roll stock load. Most of the time the ones I get ate between 40000 and 42000. Very rare do I get a paper load past those weights. Now in Monroe, LA they have that rule but they'll at least look at the trailer first. They won't just turn you away. However, if you can get a trailer newer than ten years, why not?

 

Spread axle and aluminum floorand good lites , doors and under carriage , no holes anywhere.