K.B.
There will be filing fees/court fees. If you and your soon to be exhusband have already agreed on martial property, custody, child support, and how debts will be split. You could do the forms yourself.
Things to think about: If you purchased a house or any other equitable property, you need to agree on who will maintain ownership of the property and how any equity will be split. Normally the one who will keep the property will refinance in their sole name after the divorce has been finalize.
Missouri is joint custody state with one parent having physical custody. Of course if the other parent is not able to be fit parent, then that needs to be brought up.
MO is pretty standard on thier child support, you can find calculators online to help determine roughly want child
However I really wouldn't recommend this. I would at the very least hire an attorney to look them over.
You can try looking at this website: http://www.divorcelawinfo.com/states/mo/missouri.htm