t appears that SkiesOfAzel, the Orta theme developer was contacted by a LMDE (Linux Mint Debian Edition) developer to create a similar theme for LMDE and the initial result can already be tested (not just on LMDE - you can use it on any Linux distribution obviously).

Good news for all the Orta fans: a new version has been released today with a new Nautilus Elementary style (configurable from the Orta Settings Manager) as well as many bug fixes. Here is the changelog for the latest Orta 1.4.0:

Orta theme finally got a PPA so it's now easily to install and update.