"...need to add nearly 30 lbs. to the front" ... depends on your current hitch
weight. Suppose your
Casita weighs 3200 lbs loaded, with a hitch
weight of 450. Adding 50 lbs to the rear makes the trailer 3250 and the hitch 420, which is still 13% of the
weight and is more than enough for good handling. You should be fine even at 10% weight on the hitch, and you're planning to have sway control besides.