I replaced all my knobs and hinges with ones readily available at Menards or any home improvement store. Most have a standard hole pattern. I did need to add some washers on the back of the pulls, because the included screws were a bit to long. Could have also just found some shorter screws.

One of my cabinets does not even have the "roller latch" that came with the Scamp, but the spring loaded hinges have always held the door closed just fine. I do place low sided plastic bins in the cabinets so that the items stored inside do not press against the doors. In one trip from Michigan to North Dakota and two trips from Michigan to Florida (cruising around FL for a couple of months each trip, I have never had anything fall out of the cabinets. For the large closet, between the door and dinette, I hook a plastic grocery bag (with several other bags wadded inside) over the knob. The wadded up bags are then slid behind the screen door, twisted, and made into a ball. This simple, and free fix keeps that door closed securely during travel.