My opinion, yes, you'll be fine. You're 1,000 lb below the rated tow capacity of the vehicle. I've got basically the same hitch and have had our M101 CDN (a 1/4 ton trailer) loaded with a ton for short hops from the building materials big box. BTW, what is the Hanna bumper rated at that mount point?
Brakes on the trailer would be a VERY smart idea. Perhaps legally necessary in your jurisdiction.
I suspect air bags in you rear coils would be useful for getting everything level. You'll be throwing bad angles on the rear driveshaft if you don't adjust a coil-sprung suspension, something people forget about when towing regularly sometimes.
The 8 ton rating is the ultimate towing capacity of the pintle. What we have to worry about is the tow capacity of what it attaches to, which is far below what it can tow. Remember, they use these things in cargo tugs, military operations, industrial apps.
Tongue weight I can only guess at, never measured ours because I've loaded a lot of trailers and can size things up pretty well by eye. If you have only limited experience best to measure a time or two before a trip. Once you know how you load things to achieve a good TW, then follow that and you're OK. Just keep in mind extra weight will need adjusting. used to be said 200 lb was about the max. nominal TW and that is achieved by properly loading your trailer, about 60% in front of the axle, 40% behind. It's something you should do some checking on to verify things like tongue weight, which is commonly checked with a bathroom scale for trailers of this class here in the Midwest, at least
That's why I mentioned the air bags, since the extra weight you put on the truck should not be too extreme. It's more about keeping the drivetrain angles right, depending on the load in the truck itself.
But you don't want it too light, either, as that can cause severa tailwagging type handling problems.
