I have heard before that adoption is not very common in Russia.
As for your situation, if you want to be with one of these women, what is the difference between the adopting a child and having a child that is biologically yours? Surely it's raising the kids that is a lot of money/trouble, not creating one.
If you don't want to have any more children at all, maybe you should go for women a little older who have already had kids, rather than young women who will probably want some at some stage.
When one is "shootin' blanks" as they say, then perhaps the trouble actually does lie in the "creating" and not the "raising."
And what exactly is the age of someone who is a "little older?" To clarify, the women in question are in their mid to late 30's and already have teenage offspring.
Is that a "little older" enough? The agency I use only has two in their post-menopausal section. Both 70+. They wrote back and said I was "not rich enough."
Too bad, they are HOT! Isn't it true what they say, "Once you go gray, you never go away!" :-)