ar and wget

I suppose I already ask following but I don't know how to find my message / question again, I am sorry if it is really the case...

It is possible to install Debian only with ar and wget.

Is that possible in case of Trisquel?

(for ex. start the installation from an completely different distro with a Trisquel script, ar and wget)?

(reasons:
1) I don't have some operable CD drive or USB and not need that at all with my 1 Terra Byte HD,
2) this way is an installation in a full operable Linux. You have not to wait in front of a screen needing you only all 10 or 20 minutes without to can do something else... Doing that, you can spend more time for the installation to get exactly the installation needed and not an average choice of packages. For example, I don't need some email client as I store my email in the system of my provider and look or write in the browser! My provider offers an email alarm directly in the brother! Where is the need for an email client? etc.)