Dan, Looking good as always. If you want to attach the gas springs to the hatch without bolts going through, I would recommend gluing a larger “cleat” block of wood to the inside of hatch. Then use wood screws to attach the gas spring to the cleat. This way you would have the best of both worlds, no hardware on the outside of the camper hatch and the ability to remove the gas springs down the road for servicing. You could also do the same procedure for the mounting of the gas spring to the bulkhead.