I used my 90 degree wood working clamps for the butt joints:

Frame almost complete:

Tongue Gussets:

More Tongue Reinforcements:

Completed Frame, now I'll order the Axle:

I did a lot of reinforcements and gusseting of the tongue. My tongue if 5'7" from the front of the frame to the center of the ball. The overall length is 13' 7".

