1. Very carefully filed and sanded the holes for the Hartwell latches to get them sized properly so the latches would work smoothly and have enough clearance. Sanded the edges of the holes.
2. Clamped, drilled and clecoed the latches to the door.
3. Removed the latches and countersunk the rivet holes.
4. Riveted the hinge to the door.
5. Riveted the latches to the door.
6. Cut out two 1-1/2" x 3/4" striker plates from 0.018" thick stainless steel sheet. Deburred and curved it. Cut out an identical spacer plate for one side.
7. Mixed up some resin and flox. Made leveling bases for the striker plates, then placed them in position. Attached the door and closed/ latched it with the latch plates pressing on the strikers to hold them in position. Brushed on some fillets around the striker plates to firmly hold them in position.