Need help setting up bunk trailer 20sf

[Ulf]

Hello all,

I have a feeling this has been asked before, my search skills are lacking.

I have a '74 20'SF. The roller trailer that came with is too long, I acquired an easy-loader trailer that should fit perfectly.

I need help setting up the bunks for it. Thinking of using 3x lumber.

What angle does the bunk need to be?

Where would the best placement be? I'm thinking right under stringers?

Also, how long should I make the bunks?

Thanks in advance for any input you may have,

Scott