High peaks challenge question

So i am planning on hiking Marcy, little haystack, haystack, Iroquois, Algonquin in that order in a 24 hour period. My research says it is about 32 miles total add in some steep climbing grades and i want to know if what i am planning is just gonna be really hard or easy or suicidal. I have done many 25 plus mile hikes and a couple 45 milers but i dont know what to exspect from this because i havent done any of these hikes before. Thanks for your replies.