There are very few companies that will pre-install Photoshop or illustator. I am able to buy it that way online through Dell's business portal (I'd have to check HP's from work, I know we can add some software packs for workstations), and also through the University. However consumer purchasers usually can't do that, except for rare exceptions (VooDoo used to do this type of install before they got bought by HP, but they were the exceptional exception to any rule
Really just about as easy to install it yourself, and if you have a university near you you can get an educational copy for cheap (sometimes cheaper to enroll for a course just to get the discount on some software).
PS, if it's for ease of recovery just install on fresh updated machine, and then burn an image for future restores.