BRAKES?:
If the trailer issue is brakes then look into putting a new axle on the existing trailer. If you use an electric controller in your vehicle...
One or two or three pins to reinforce the cracked portion. Most welding shops will have silicon bronze tig rods as big as 3/16" and only challenge is...
The advantages of a higher priced ply are the higher ply count and a surface that will take a good finish. Some 3/4" CDX pine sheathing may be only 4...