Let me add one thing. If you have a large Flash drive 64gb or more. You can move most of the downloaded files to your other computer. Then run the Elite installer which should be in your downloads. and it will cut your download to minutes, not hours or days. You know Drive:/User/username/Appdata/Frontier Developments. One has Game data the other will have your controller configs and such. So copy both.
Now that would have been the smart thing to do.
Since I have a data cap I do most downloads, especially large ones, in the wee hours of the morning during the "Free Time" so I started the d/l this morning at 1am and cut it off at 6am-ish with plenty to go. Y'all know how those zippy d/l speeds are with Frontier.

It got about 2/3 done in those 5 hours.
I don't have a flash drive larger than 16GB which may have sufficed but I decided to just run the balance of the files through HomeGroup network. It will yet take some time to finish but not much longer than a straight d/l.
I should have just done that in the first place.
It is good to know that I can at least have Elite on two machines though. Thanks to all who helped with that info.