Remember Lennart's comment?

Debian is not 3 DVD images.  It is 14 DVD images or 3 BD images.
About 60GB total for the images. 

The installation disk might be 3 DVD images, then you'll face the massive update requirement/problem I pointed out earlier, which you need all the above 14 DVDs to overcome. 

On Mon, Mar 5, 2018 at 11:04 AM, Clifford Ilkay via talk wrote:

Solution: install at friend's house. Updates are still going to be an issue, though most updates tend not to be more than a few megs.

 

Yep, agree, that's the only viable/practical choice. 

Everything else will give you more trouble than you'd ask for, and no one can help, because no one does in those ways.