I think I noticed it. Fair enough. I think you should explore this further, and do a trial, with yourself remaining the "super mod" who can sack the two if it doesn't work out. I think it would though. I suppose the solution is either:
--1-2 bilingual (RU/EN) people or
--1 Russian speaking, one English speaking.
--If you are concerned about bias etc then you would have to choose two with "matching" opinions so they can moderate each other, as well as the forum.
Best thing would be if somebody from Belarus or Kazakhstan would step forward. I think they are more open minded about Ukraine and can sympathise with both sides without being accused of partisanship.
I think if you post in this forum, or the General forum about it, you'll have more success in finding somebody!
Alt. you could approach people that seem suitable to you, via PM.