I can tell you what is typical for a case like the one you described. A criminal conviction is only relevant to the extent that it provides insight into the best interest of the child
. A drug conviction or domestic violence
conviction will bear heavily on a custody order, but theft or other non-violent crimes are generally irrelevant.
What is relevant, however, is being absent from a child's life for an extended period of time. Kids need stability, and a parent who goes missing while she is incarcerated is a destabilizer. Still, where a year has passed and the child has had a good relationship with the parent over that time, the impact of that will generally be minimal as well.
What is typically most significant is the frequency and quality of the visitation because the court will look at the child's emotional and developmental needs in that context. 8 year olds generally need more time with their same-sex parent, so it is not a surprise that your daughter wants to spend more time with you.
However, courts do not like to make dramatic changes--as I mentioned, kids need stability. In that context, a court would be more likely to go from every other weekend to perhaps four weekends per month plus summers. If it did not disrupt the child's school schedule, it could realistically go to a 50/50 split. But it would not typically
result in an immediate shift in primary custody, though it might move in that general direction in the short-run. Every case is different, of course, so I cannot predict exactly what will happen based on 1/2 of the story, but you might realistically see some, but not complete, progress toward the goal.
I understand that you may have follow-up questions. Let me know if further clarification is needed. Thank you.