I'm at 744lbs over my yellow sticker (Supposed actual leaving the factory dry weight.) and my hitch weight is 250lbs over advertised pin weight and I think you'll find that's pretty consistent, 1/3 of your typical stuff payload goes on the pin. The average person carries about 1,000lbs ready to go, mine is without food, clothing or toiletries.
So you're going to put about 330lbs more onto the pin in regular payload, but that will change once you load the golf cart in the storage area, which is behind the axles and will offset the pin weight some, part of why your static pin weight is so high. You're at 23% pin weight which sounds like a lot until you put that golf cart in the back when I bet it will drop to 18% or so.
But with just static numbers you're well under. I'd weigh it once you have it, loaded for a typical trip cart and all, but the real numbers won't vary enough to worry about.
Signed, Steve, the anti weight police.
Now-2014 Sierra 346RETS 5er BUB
Then-2002 Keystone Springdale 286RLDS TT
Nights camped in 2014-28, 2015-127, 2016-10