I bought this 16' trailer new 19 years ago with 3500# axles & slide-in ramps. When I brought Dad's 720D home, I needed heavier capacity. Went back to the builder, traded in the 3500# axles, wheels & springs for 6000#. Later, after cancer treatments, the ramps were just too heavy, so back for the 5' ramp-gate. Then back for the addition of a rear receiver tube to pull a second trailer on occasion.
Now, with the longer finish mower I bought this year, I needed more space to balance the load by moving back a foot or so. Back to the builder again after show season to add a 2' dovetail & cut down the heavy 5' ramp-gate. Another $1000 invested (trailer originally cost $2000 19 years ago). I picked it up this morning, They cut the gate 16", making it super easy for this old coot to lift! Going to us Rustoleum spray bed liner on the tread plate dovetail & Rustoleum Semi-Gloss Black on the rest. Whole trailer needs fresh paint, but not now!