If you have been assaulted you don't need to waste your time in mediation, and may qualify for legal aid if your income is low enough. Did you report the assault to the police?
What you are asking for is not much, but as your solicitor said it is a small pot, so s/he may have been concerned that the pot would be depleted by the divorce costs and therefore leaving nothing to split between the parts by the end of it.
IMO, it is a waste of time to seek child maintenance through courts, because, if things are still the same as they were a few years ago, after a year, whatever arrangement you sorted out in court will expire and he would be able to revert to child maintenance as per the defunct CSA's recommendation. On a reported salary of £7,000 you would be getting about £27 a week provided both children live with you and he have them overnight less than 50ish nights a year. I'm afraid that when it comes to nrp having their own businesses (and some creative accountant), it is almost impossible to prove their income is higher than disclosed.
However, if you have a child who has a disability that prevents you from working, you may ask for spousal maintenance but on that reported income it is very unlikely that it would be substantial or even that it will be ordered. BUT, it may support your case that you need a bigger percentage of the equity to house yourself and your child(ren).
Which brings you back to the house, the important thing is how much is the equity and wether by selling the house, and splitting the proceeds, you will have the means to rehouse yourself. Another thing to consider is, if you have a mortgage, would you be able to buy him out or take on the mortgage if the house is transferred to you? If not, could you buy a smaller place? These are questions you need to ask yourself when defining what you want. I know a woman who fought hard to stay in the house and won, just to find out the house had to be sold anyway because she couldn't afford to keep it.
The big issue could be the ownership of the shares but, before you get into that, check what is the value of them, because it may be that by leaving the company your shares shall be sold back to the company for a nominal value. But, if you are allowed to keep them and they are bringing a dividend income to you, the court may like to have more details.
So, in a nutshell, count how much you will get and decide if that is worth the battle. I have an order that allows me to go back to ask more money from my ex if my circumstances or his change. I have decided not to use it because the amount of extra money I could get is much less than what I would pay to keep him away from us as he is at the moment.
I agree however that having an order is essential, to know where you stand and for your peace of mind,and bring some closure.