The trailer is fully loaded? Dry is 6100 and weighed it's 6520. You're fully loaded with 420 lbs.? Food, kitchen utensils, fresh water stuff, sewer stuff, chocks, leveling equip., clothes, shoes, toiletries, tools, ??? Unless you travel with just a coffee pot and sleeping bag that seems a little off.
You don't list the payload of your truck from the sticker. You may be Ok in that respect which is usually the Achilles tendon of a 1/2 ton. Overall it looks like you are pretty good - you just might want to throw in a few more clothes depending on where you camp