Hi, Georgi! Glad to see you made it to the site. Are you still considering Russia? I still think you're crazy...hahaha
I don't think you can get the short visa any more for your needs. Putin has clamped down on US citizens. Even crew visas require different info from 2013. As for the places you've traveled--only fill in 3.

You'll find lots of destinations here and so many experts to assist.
IST is amazing and the visa is online for $20. Accoms are rather cheap, too. JNB is really tough for anyone w/out S2.

Hope you'll add some of your nonrev travel reports in the near future.
Cheers!