You can rent the stripper at Home Depot or Lowes, and I believe many retailers that sell wallpaper also can provide equipment. A lot of people start with liquid stripping mixes like Dif or just vinegar and water.
Rather than reinvent the wheel here, look at the following website courtesy of Rebecca Schunck:
PS: Is the wallpaper green too? And by the way, you have too many projects going. Looks to be a full time job.