I just measured in 105 inches (of the 160 cargo area depth) and ran a split bed that folds up from the middle, to each side of the van. Heavy two pallet loads require the "fold out" of bed in order to balance the load, but the foam bedding can then be placed between the front seats and through the bulkhead door. 3 pallet preparation is mere seconds.
Good advice on the going with an owner van for a few months IMHO. There's good owners out there who will somewhat take care of the driver, but owning your own means; you'll not have to worry about explaining to anyone why you turned a load down. You see....it's because that load will not make ME, any money. When you drive for someone else, it's to make them and the company money, and there's instances whereby, you'll lose big time as a driver.
In short? You may tire quickly of sitting for a week because you had to take an ill advised load....thus burning up your money from the last one, while sitting. Your own vehicle places that responsibility right onto you, and most can eventually learn to live with they're own decisions.