Yes..good point on the box..hadn't thought about it....will do.Nice find. Looks like it already has some D-rings for tie down points. May want to add a few more. Also mount a storage box on the tongue for chains and binders. Get some 5/16" grade 70 chain and binders for tie downs. Maybe some HD straps to tie down the loader and implements.
check the brakes. adjust and or replace the entire backing plates for less than half the cost of the parts. you do have a brake controller right? (if not add one)
check (or more likely) add brake-away e-brake kit.
check all your lights and wireing. (add replacements to your order list)
I second the storage box.
I prefer e-trailer.com for parts and free shipping