@LetaLestrange
My experience of going to court with dsis as her McKenzie friend for her financial order.
Courts don't like mesher orders, they like a clean financial break.
Your DC won't be taken into consideration, dsis was of the opinion that she may be able to keep the house as her dd is disabled and dsis is her carer and unable to work, the judge wasn't interested.
Dsis had bought her house before she even met her now Ex, that wasn't taken into account either.
Dsis got a 60/40 split in her favour, not enough to buy anything else, she can't get a mortgage due to being on benefits, she has an IVA due to family debt that the ex refused to help pay so she has no credit rating.
Dsis has to put her home on the market with nowhere to go, council won't house her due house sale funds, she'll be expected to use the funds to rent privately, her benefits will stop as she'll be expected to live on the funds.
Dsis worked all her life until dd became disabled and is now going to lose everything she's worked for.
I would buckle up if I were you, plan for the worse.
My experience of having two Dsis and a couple of friends divorced is that the ex is rarely reasonable, they want their money, they want what they deem is "fair", housing and caring for the joint DC is not their problem, school holidays, sickness is not their problem, it's yours.
Their job is too pay as little as possible, see them as little as possible (EOW) and play the martyr.
I may be a little jaded but this is what I've lived through.