As in I don't know what is the difference between say the conferences SODA, STOC or FOCS. Measured in terms of such conferences, where would such a result be publishable? This is not a technical question.I want to understand how importantly does the community view this question if hypothetically someone does this. May be you can just comment and not write an answer 
How important is it to find a deterministic polynomial time algorithm to construct Ramanujan graphs?
complexity theory;graph theory;reference request