The likelihood of daytrading your way to a large stash is very low.   Selling tops and buying bottoms is very slow work, if you want to keep risk managable.  Doing it fast with managed risk requires talent training and experience.  Almost certainly you are better off just buying it gradually, in constant fiat amounts, small and frequent.  Various savings plans involving sales to reduce exposure at highs, have been published.  Risto has one which is well considered.  Look for that thread.  David Latapie has one which he tuned for Monero.  Check his posts, probably during June.