Saving for a house deposit on a PhD stipend

So I'll be a PhD student soon and my partner wants to buy a flat/house within the next 18 months, I'm sure he'll manage to save this part of the deposit (hes earning a lot and living with his parents so hes saving alot). I am working currently within education and don't get paid for summer holidays so my income will be non-existent in July. I have budgeted to minimize my spending as much as I can, but I need to keep an emergency fund for dental/opticians/ car repairs and insurance.
With this I may be able to save 5-6K, but I know that't not enough but besides working alongside my PhD which I plan too as a TA (which I can only do for 15 hrs a week) is there anything else?
Thanks