Twin pram for single mom

I am asking for help because I need to buy a twin pram for my 2 year old and soon to come baby. Since I had no idea that I would be a pregnant single mom, I have not saved any money for the pram. I am a stay at home mom and my financial situation right now is not the best. Before my baby will arrive we will have my oldest daughters 8 year birthday and then there is christmas so I will not be able to buy the pram without help of other people. I am now hoping people who read this will have a big heart and donate what they can. The cheapest possible twin pram that will handle Finnish winter and fit in busses and elevators costs 499€.

https://www.jollyroom.fi/lastenvaunut/sisarusvaunu...

This is a link to the cheapest possible pram that will work for us since we have snow here in Finland in winter.