Make sure you get a financial agreement in place as well. Even if you’re all fine now, you could be impacted by future changes in circumstances.
We drafted an agreement based on some examples on line, I then gave it to a solicitor who rewrote it into something official – judge stamped it. With solicitor fees that bit probably cost about 400 quid. Excluding the mountain of cash i had to give to the ex obviously!
My number 1 tip would be to ensure that you’re the petitioner, this lets you control the pace of proceedings and makes sure things chivy along ok. Sounds like you’re both on good terms, so perhaps ensure that whoever is most organised is the petitioner.
Also when you submit the forms, don’t put a solicitor as your point of contact (they’ll charge you for this) – put yourself – you can always show a solicitor documents you get sent should you need to.