I carried a mini excavator (4,500) in my bri mar dump with the landscape gate it did fine. its a 10k trailer. my truck almost lifted of the ground when it was coming up the ramp, but it worked fine.
To the main point, I have 1/2ton and dump trailer. the issue im having and can see getting worse is having all my equipment in my trailer - like mower, walk behind blower, or a dingo or something, then having leaves or other debris to clean up. when the trailer starts getting more full its kind of difficult. Or when I have mulch and I need to take my equipment with me. Then I wish I had a bigger truck bed to put the materials / debris in and carry my equipment on my trailer. This is mostly its for fall cleanups / bigger projects. Just mowing is fine obviously it works out well.