Resadential entry door.
Every option you can dream of for windows, opening with screen, built in blinds, window anywhere on the door, insulated, 28, 30, 32, 36 inch sizes, ect.
Best part, no door BRAND NEW will run more than $500. Most cases they are around $110 for a blank slab, and $200 with a window.
You don't need the useless wood frame. Just the door. You have a metal shop form up some pieces to make the opening the door fits into. Again cheap.
Now the best part. There are tons of places like habitat for humanity with hundreds of doors for under $100 if you need real low cost, and don't mind used.
Now dead bolts, door knobs ect become easy, and reliable. No more flimsy, poorly made RV crap. You can also get really nice looking entry door knob sets.
Every time I'm around RV anything, I can't believe how crappy this junk is made. There is no way I would deal with using any of that stuff.