(1 step) I think I would do DG601/DG105 and let it be, and then maybe just a spray wax from time to time. (I've never used DG601/DG105 though)
(2 step) or M205 and a sealant,
(3 step) but I think, if your going to do that many steps, you might as well and do a 3 step and you could be...