I know latex is easier but like I said, I'm old school. I apprenticed as a union carpenter under 2 german brothers & was brow-beaten into submission on how things are done. A tip though......Oil primer should be put on in thin coats
(nearly transparent). Thin the primer & finish coat with mineral spirits or better yet a product called Penetrol. The paint will flow better & you won't have as much drag on the brush. It will also dry faster. This april when I primed my hives it took a week for the paint to completely dry because it was so rainy & humid. If the base coat is not completely dry the 2nd coat will keep it from drying & guaranty your paint will fail.