Dear Roscoe
Welcome to the board.
I appreciate your painstaking self-evaluation which speaks for itself in terms of your sense of responsibility - essential for child raising.
By all means consult with resources etc, but beware of others trying to "apply" some sort of human-darwinism to you, just because you are genetically different. I am not a man but i have had some 'looks' when it came to the child thing and bipolar. It sounds like you are able. It also sounds like you are well-informed and experienced enough to help a child who turned out bipolar get help sooner than later, and learn to adapt better, relate better. I know a couple bipolar moms who are just fine. a close friend of mine is, she has 3 kids... the eldest are currently attending the best universities and with early admission.
you might want to make lists to help you if you are a listy person. the max number of items list doesn't have to win - i mean, your thoughts and feelings (and fears) might get more organized in your head...
1. why do i want to have children?
2. why do i not want to have children?
.... and if fears emerge... attempt to address them. some may not be so unspeakable, or unfixable. some may even be unrealistic.
if you have a life partner alrready, or prospective one, you should talk to her too... but, since women (esp. at certain ages) tend to be statistically and biologically biased towards pro-procreation

i'd say get your own thoughts and feelings clearer to yourself before this talk.
the answer has to come from inside.
keep posting as you progress, or if you wish to share other things...
we will listen and dialog with you.
~ waves ~