Hi,

What would be ideal is to find some plastic troughs that slot inside
the wooden ones, they don't have to be an exact fit.

The ends of the legs I'd put in plastic jar lids and top up with clear
wood preserver. Once dry I'd then give the ends a coat of wood stain
or paint.

Milk carton tops (semi skimmed ) fastened to the ends of the legs
with small brass tacks might make ideal feet.

cheers,
Pete.