You are faced with the same dilemma the rest of us in the US have to deal with. I have already thoroughly investigated the alternate methods similar to the one you are attempting.
I admit that using the existing K-1/K-2 process is risky in that it does not allow for our prospective brides to come to our country (US) and live prior to making the commitment of marriage in the K-1. It sucks, but that is the way it is. After all the research, we chose to go the K-1/K-2 process.
If you are interested in an alternative solution, go to a specialized immigration attorney. They handle these alternative methods practically daily. The thought of doing it yourself I would think is impossible. You will also have to pay a significant amount of money for their services.
You may find it is easier to spend time in her country long enough for both of you to get to know each other well enough to make a commitment to each other. It may take multiple trips. In the mean time you can take photos and videos of your home, the city, and sites to see to give her an idea of what it will be like.
While there are many countries that allow entry into the US without going through this process, unfortunately the FSU countries are not included in the list. From what I have read, there are talks between Washington and some FSU countries to change this, I would not hold my breath.
If you choose to see an immigration attorney and seek an alternative route, I would strongly suggest that you do not post to this board anything about what you are doing! Another chap that did so was rudely called every name in the book including a criminal and a fraud. If you choose to go that route just keep it to yourself. Some on this board have a real ax to grind about this issue. We know that many people have success in alternate methods because we talk to them and see them around us all the time. For me the extra money was not worth the benefit.
Just received the Notice of Action from the USCIS today for the K-1/K-2 visa application. Now it's going to be another 5-7 months before they can board the plane
You can PM me if you like. I am not going to get into a big pissing contest again over this topic.