If Torklift doesn’t make Tiedowns for the front of your rig because of the running boards check out Happyjack.
Since you have a relatively lightweight camper that type of support for the front end would probably work out OK.
I called torklift today and they do make mounts for the truck but you have to trim about 4″ off the running board. You have to order mounts for a truck without the running boards. It was my lucky day because they were on sale and when I hesitated ordering them they offered me an additional 10% off so I squeezed the trigger. Sale ends Feb 8th.