If your gonna do several hatches through out the year, consider making a wooden box incubator, It will last a longtime and your less likely to catch it on fire. If your handy with power tools you can make it to your exact measurement. Or you can find a used wooden dresser drawer at a thrift...
Did you settle your shipped eggs first that's really important. Takes about a 1 to 3 days to reform egg content. And day 1 and 2 in the incubator, the eggs should not be turned.