I've never checked my max dead lifts por squartes, i normaly do at least six to twelve reps on these. My max bench is 110 kg so convrted to pounds is about 225 ( i think, correct me if im wrong). I never have done BB rows, (i usually use the t-bar instead), but i know how it is used so will give it a go. I usually lift 100 kg on both squates and deadlifts , i reckon i could max about a hundred a twenty on both tem, so i give that a go and come back with some better numbers.
By the way nice challange.