Legal aid is only available in very limited circumstances where dv has been involved.
The point of the court proceedings for finances is first to determine what is in the pot, second to establish needs and third to work out the best way to split the assets to meet those needs.
The question of the savings should be raised in the statement of issues for First Appointment. The judge may be able to give a view at that stage. You can ask for an order to state how the savings are to be treated if necessary. The schedule of assets should be agreed by the time you get to FDR. If it isn't, the judge can decide at that stage what is to be included. You can also seek undertakings/orders about not spending the money.
NB all assets go into the pot whether they are in sole or joint names. Some may be argued out later.
If you are LIP with limited funds, you may find some of our support services useful.
If you read the link I posted, and Hadenough's reply about legal aid, you will see that legal aid is only available for court proceedings for those who have been a victim of dv and who meet the financial criteria.
It's very likely that you are not eligible for legal aid for court proceedings, any may need to consider self-representing. Call the Wikivorce helpline and ask about the support services.