Pickups are designed to ride off-road, they are pretty safe, and if you have good shock absorbers, you will not feel most of the holes and irregularities on the off-road. I know that pickups may have problems in driving if the weight of the trailer is greater than the pickup, but this is due to the fact that the weight isn't balanced. I would recommend you choose a good weight of distributing hitch, this will help to distribute the weight correctly on the back and in front of the car. I often read such portals as truckpowerup, there is a lot of information about pickups, problems with pickups and the best solutions. In addition, there are always articles with reviews of different parts for pickups. This should help you choose a good one.