Sorry, this has probably been done a hundred times before..
i have 2 ex partners now, one is my dd's father and the other is my son's father.
Dd sees her dad one sunday every fortnight,more in hols, and he pays us £250 a month.
Ds's father has him (and dd sometimes)every single fri night til sunday night, and sometimes one evening in the week. He pays £450 a month.
Does all this sound reasonable?