I am not actually sure where you can get a working copy of the installation disks for DOS. MS is not offering it for free, so you would have to obtain a valid license.
To install... I believe that you booted from the Disk #1, read and follow the prompts and change disks when required. There really wasn't much to the installation. It was learning the DOS commands that caused problems for some.
95/98/ME/2000 are a little more of a challange to install.
You can always post back again once you get everything together.
I wouldn't mind seeing a picture of your set-up when your done. ...I guess I am a geek too.