Yeah, I think so too but I need to be sure, that's why I was asking in here for someone more informed than me about resources.
According to google, one can earn 240 primos on average each day if you do your daily tasks and complete all events, Abyss etc.
Assuming Itto gets his banner first, there's 50 days (8 days left for Childe, 21 for Hu Tao, 21 for Itto) from now until the
end of Itto's banner. That's 12.000 primos, or 75 wishes. Going with the worst case scenario (90 wishes for each 5 star), that would be enough to guarantee three 5 stars with your current resources (69 pity + 141 + 75 = 285 wishes ÷ 90 = 3,16).
Some patches aren't as generous though, or the time frame in which big paying events take place could be unfavorable. That 240 a day is just an average after all. If we happen to get less, let's say 160 primos per day, that would be enough to buy 50 wishes, which is not quite enough to hit pity thrice (69 + 141 + 50 = 260 ÷ 90 = 2,88). In this case you'd be lacking 12 wishes to achieve that guarantee.
Conclusion: If Itto hits the banner first, you're pretty likely to get him. You'd need to be very unlucky (hitting pity late multiple times, lacking primo payouts) for this to go wrong. If Itto is the second banner you are guaranteed to get him, as you'd have more than one and a half patch to save up enough for 70 wishes, which shouldn't be an issue.