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Ours is 7500lbs gvwr. Bilstein rear shocks help. With the Hensley, you should be fine, but as stated the tongue weight is horribly optimistic. Ours lists as 592lbs. We’re over 1000 lbs every trip. Propane tanks and battery aren’t included, to say nothing about items inside. The trailer you list is also 34 feet long. Without the Hensley, I would be careful with a 145” wheelbase truck.
 

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What do you think the wheelbase has to do with it ?
Stability.
A common rule of thumb is that 110inches of wheelbase cover the first 20ft of trailer. Every 4" over that can safely tow another foot of trailer. A trailer is a sail in the wind and getting pushed around by passing semis, wind gusts, etc are worse the bigger the sail (trailer). A 145" wheelbase F150 can safely tow around 29' of trailer by the above metric. The trailer you are looking at is 5 feet longer.

 

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What about tractors, their wheelbase is the 180", towing 53'.
That isn't a bumper pull, but puts the trailer on the rear wheels of the tow vehicle. The tractor on its own can weigh from 15k to 25k lbs. That's without the trailer attached. 35000lbs with an empty trailer. Half the weight of the trailer is sitting on the rear axle of the tractor unit. That provides a lot of extra stability compared to a 12k lb F150+trailer combo. Ask people who tow 5th wheels which are more stable. Towing a 30ft bumper pull sail with a vehicle that weighs just more than your average minivan (F150=4608lbs, oddyssey= 4440 base curb weights for example) can be a harrowing experience if it isn't set up well. Plenty of folks pulling longer units, on this site and others, without issue, but plenty have trouble as well. Heavier weight and longer wheelbase will always provide more stability and more safety buffer when things get hairy.

Semi's aren't immune when things get bad enough:

 
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