Another newbie design for your consideration

Hello;
I am adding a teardrop to my list of home construction projects and would appreciate suggestions from the forum.
My goals are light weight (800 lb?). Queen bed. Simple galley. Battery and shore electric. Air conditioning. Economy.
Basic size 5' wide, 4' tall. 9' long.
I am planning to weld up a trailer and use a torsion axle. the trailer will have a 2X2 1/8 tube perimeter and 2x2 angle braces.
Walls floor and roof will be sandwich of 1/4" ply 3/4" x 2" poplar frame with 3/4" x 1/4" stringers to stiffen the torsion box, foam filled for insulation.
Dropped floor for storage and seating. The table will slide out from underneath the rear cabinet.
The long fenders will provide storage, a battery box and electrical connections.
What should I be considering?
I am adding a teardrop to my list of home construction projects and would appreciate suggestions from the forum.
My goals are light weight (800 lb?). Queen bed. Simple galley. Battery and shore electric. Air conditioning. Economy.
Basic size 5' wide, 4' tall. 9' long.
I am planning to weld up a trailer and use a torsion axle. the trailer will have a 2X2 1/8 tube perimeter and 2x2 angle braces.
Walls floor and roof will be sandwich of 1/4" ply 3/4" x 2" poplar frame with 3/4" x 1/4" stringers to stiffen the torsion box, foam filled for insulation.
Dropped floor for storage and seating. The table will slide out from underneath the rear cabinet.
The long fenders will provide storage, a battery box and electrical connections.
What should I be considering?