DIY Door Construction

Love this forum! Huge resource for all things teardrop. But it's so huge it's hard to search for the grain of sand on the beach.
Here is what I need help with... I want to make my own doors to save the cost of paying $550 for a set of doors.
My situation:
- Would like a clean aluminum look for all edgers of door and jam inside and out (trailer has an aluminum outside skin)
- Wall thickness is 1.25" - .25" inner and outer skin with .75" framing wood.
- Needs to be watertight as I live and camp in Washington state.
- Door must lock with key.
- Not looking for anything fancy. Clean & simple is best.
I guess that's it. I have never made doors before. I have ready the generic instructions for a teardrop and this gets be part of the way.
Thanks

Here is what I need help with... I want to make my own doors to save the cost of paying $550 for a set of doors.
My situation:
- Would like a clean aluminum look for all edgers of door and jam inside and out (trailer has an aluminum outside skin)
- Wall thickness is 1.25" - .25" inner and outer skin with .75" framing wood.
- Needs to be watertight as I live and camp in Washington state.
- Door must lock with key.
- Not looking for anything fancy. Clean & simple is best.
I guess that's it. I have never made doors before. I have ready the generic instructions for a teardrop and this gets be part of the way.
Thanks