most of the ramen noodles do come with a little sachet of stock. I would imagine they are free without adding the stock. I am not sure with the stock sachet thingy.
Do you live in the US?
All the pasta roni's, rice roni's and pasta/rice/fiesta sides are free if you make them up with water instead of the butter and milk.
Miso paste is 1/2 syn for a teaspoon, so if you made that up to a soup, added some egg noodles (free) and maybe some asian veggies, you could have yourself a lovely big bowl of noodles for 1/2 syn.