Divorce process and fairness of split

Hello,
My wife is divorcing me. (she strayed). These are our details

She;
Aged 38
3 kids, 5,11,14
Newly qualified nurse
£29000 PA + Estimate £800 p/m maintenance + Child benefit, + minor income as forces reservist

Me;
Aged 45
Earn £60,000 on temporary work until end of March. (could be out of work during the thick of this).
Apart from house equity, i only have a small DB pension pot worth a measly £40k
My ability to earn money and gain employment has also been seriously curtailed by a police caution i picked up due to a spurious allegation by another family member which is a massive worry to me. (is this relevant to the court?)

She has said she is happy to split house equity 50/50, but her belief is that when it comes to the the Consent Order down the line, the court will say its not fair and i must give her more.
I've read things that say shes right and things that say women with kids always getting say 65% or 70% is a myth.

From my point of view, i'm nearer retirement and she will benefit from a final salary pension and my future income is uncertain. In my previous contract role, i earned half what i do now. I too want to be able to have a three bed house, so i can at least rent a room out to give me financial security of my own and have space for my kids if they are staying over say once or twice a month. Her income with my maintenance, will also be above mine and will be above the income that i've had to support us with for most of the past 5 years on a monthly basis. So she wont be broke! She has this fanciful idea that she's entitled to spousal maintenance too.

Is 50/50 fair in this respect, or should i be prepared to loose more?
We are putting the house on the market in December and my aim was to start buying somewhere else asap as i want to live under my own roof again and not with family. However, i gather i could end up in a situation where i have bought a house prior to the consent order being rubber stamped - which i gather is a risk? - What could happen in that situation - could i agree to give her the difference ordered amount by within say 5 years as a practical resolution? are my arguments and approach reasonable?

Sorry, lots of questions here.

Financial settlement on divorce is based on needs. Equal shares ie 50:5O does not = equality or equity. It is not uncommon for the party with the majority of care for children and lower income, perhaps connected with child responsibilities, to end up with a greater share of the assets on divorce.

Although the other party may have less capital, if they have a greater income and borrowing capacity they can be housed appropriately. Where renting is the only option for one party a Mesher type order may be considered so they get a share of the equity in future.

In terms of income, despite the redundancy, your earning capacity would be seen as the same as it has been.

Pensions are shared equally ( based on capital value or income in retirement) although you can agree to leave them out of the equation if they are small and if the other party has had a bigger share of the equity (offset against pension entitlement).

Hadenoughnow