The millennial child website has a wealth of free information to those mamas commenting on the cost of waldorf curriculum. The Little Flower Garden guides (esp. the ebooks) are also quite affordable. I am reading through gr 1 for dd now and I have fifth grade oak meadow for ds.
SOTW Volume 1 & 2 are $5.99 for the original edition. I believe there are minor map changes in the newer versions, but esp. for a 1st & 2nd grader, you can't beat the price.