[Hondaracer]

if you have soil down already just spread sand out to get the level right

150sq ft might be about a pallete and a half of sod rolls, once it's all spread out most landscapers will spread sand over the sod as well to completely level/solidify the ground

just get like a load of sand in a wheel barrow, get a shovel full and throw it in a sweeping motion so it spreads over a big area