Mostly good advice.
I too don't understand the length effecting the weight rating of the trailer. Payload capacity less....maybe. assuming trailer is of similar build longer is heavier.
Also don't understand the haste against straps. Straps and chains are BOTH rated for a certain weight. And you can size appropriately for either, or undersize for either. I'd rather have an appropriately rated strap vs undersized chain. And the law would also agree.
The notion of loaded tires I mention. No it doesn't change a trailers rating.....but loaded tractor tires is more payload.
The OP mentioned a
L3400 with loader, bushhog, and box blade.....AND loaded tires.....and making a big assumption that all of that is under 5k pounds and has a trailer with a 6k payload.
The bare tractor is 2600, the loader is 895, the bucket is 260. If the tires are r4 and filled with rimguard, that's 310 per tire.
So we are now at 4375 pounds.
A rotary cutter can be anywhere from 600-1000 pounds. And a box blade can be 500+.
Not knowing the weight of the bushhog and box blade.....I think the OP is ALOT closer to his 6000lb capacity than he realizes. And on such a small trailer....no room to adjust load for balance. Not a good combo of you ask me.
If I had to haul a 5500-6000# load regularly, I'd want a trailer that I wouldn't be maxing out on