Looking to build folding sawhorses



I need about four sawhorses to lay my sailboat mast (50') horizontally while
I am doing the preparation work in the spring.

Ideally, I should be able to transport these four sawhorses in the trunk of
my car from my house to the yacht club. Then bring them back home and store
them for the rest of the season.

So far, I have not been able to come up with a design that is foldable,
strong, and easy to use and store.

Any suggestion will be appreciated.



TIA

Denis