I would either vacuum bag them, or make a mold. As small as yours are, the mold would be relatively easy, only about 4ft. long.
Making the mold is more of a future thing for me as I will try a mold-less method first.
I want to do a wet layup with no vacuuming.
As I will make a thin skin I believe issues with wetting the cloth will be minimal.
Of course I do not want to use more resin than necessary either.
I will not make two sides of the blade and glue them either.
I will wrap the cloth around a cured rib and spar structure.
I expect minor failures like some collapse on the skin where there is no support from the inside between ribs.
I need to find a good way of sealing the blade tip and root.
The root section is also a bit of an issue, I will do what is best and less costly.
I will cure at room temperature but there is also the possibility of postcure heat treatment like a couple hours of baking in 90-120 degrees.
I will do it if I can do it with my electric heater, it will be like an open oven.
I tent to use available materials that I have at home.
I only have some small tools at home.