Those look like fine trailers. I have/had both styles, they both have there place. For commercial use, I prefer the gooseneck for heavy duty, day in day out use.
Take advantage of the board brackets and install the extension boards. It gives more capacity and protects the top rail of the bed.
I do question the 11 gauge floor and sides. Logs are hard on them. My currant dump, has 7 gauge floor and 10 gauge sides.
Dump trailers are the most handy of all trailers. It is my go to trailer.
Just an FYI, I know you didn't ask, but

When you load logs, try and get every face/sidewall log, to rest on the log under it, all the way to the floor. Avoid wedging them against the sides.
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