While the Internet Archive sells and supports their scanning hardware, and there are community plans if you wanted to build your own, since you don't have a budget and don't want to do it yourself, perhaps the National Library of Australia's "Trove" project is a better avenue:

http://trove.nla.gov.au

They're a partner with IA as part of the Open Content Alliance, and they provide complete end-to-end non-destructive scanning and hosting services through the Trove site and software:

http://help.nla.gov.au/trove/digitisation-partner-guidelines

150 magazines * 100 pages * AU$1.65 for a "journal" page is AUD$24,750, plus whatever it will cost you to "negotiate and document reproduction permission with copyright owners."

(For that price you alternatively could buy the Internet Archive's scanner, but you'd still need labor to operate it. Or, for US$1750 you could get the parts for a DIY book scanner, and then use the rest of the money to hire people to build and operate it, which might cost less, maybe. The results wouldn't be guaranteed, however, as they would be through IA or Trove, and you'd still need to host it and the content somewhere.)