I'm wanting to get historical moneylines for nfl games, as far back as possible (I'd love to get 1978-2014). Even just data as minimal as:

would be great. I've done quite a bit of searching, but can't quite hit on the right source. The best I've found so far is oddsportal.com (2008-current) and footballlocks.com (2006-current), but both would involve somewhat significant effort and/or scraping.
Any pointers or help would be greatly appreciated. There is so much noise in searches of this type, it's overwhelming.