Having been involved with all of the minor hockey leagues, these figures are inaccurate. Average salaries from what I know are as follows.
SPHL = 250 week average.
ECHL = depending on pro team affiliation but more like 400 to 500.
There is zero money in minor hockey so if that's your dream job, go to college or become a sandwich artist at Subway. You will have a much better career path.