Your pushing that tow limit if not exceeding it. For short distances being at the limit might work, but for long distances I would not recommend it, your braking system and suspension will not be tailored well to that type of travel with that weight. You would want something bigger. We trailered our 1989 22 seafarer with a GMC Envoy, plenty of pulling power, but the suspension lacked, but we only did it 2 times a year so we did not care. For far distances we would not have used that vechicle. We had an explorer before that, V6, not much pep with that boat behind it but better suspension, before that was a mid 1990's Jimmy...that was the best believe it or not. We've also used friends pick ups with higherr tow ratings and it made a huge difference, puts a lot less worry in your head when the tow vechicle rides well and can handle the load, you can put your mind on the road instead of watching the trailer every 10 seconds wondering if every bump or creek is something going on.
Either find a bigger tow vechicle, or a marine to leave it at. you will have a tough time going up steep grades, and I don;t even want to think about hauling that boat out on a slippery ramp...