yeah without stickers its just a 390R.
prestige doesn't really hold any stock, as with any other broker. The prices given initially are starting prices at an auction. If its a hot property then it'll skyrocket. If its common then it shouldn't budge much.
You should be able to check auction prices once they finish on some russian sites, can't remember off the top of my head, but google it and you should be able to find them. They keep the history for a year or so.