Not sure you have to be 'known' on the scene to run a decent night, it goes on music policy, DJ line ups, venue and, probably a little more prominant in this thread, ethics (as in vinyl vs CD).
Personally, if you put a night on playing vinyl released records on CD, i probably wouldnt attend, mainly because it usually just leads another pure classic oldies night with little variation in tunes that i cant hear elsewhere, but that's just my opinion.
I think to ask someone to pay money to attend a place where they play CD's which are readily available in your own home, often for free, is unlikely to work. However you may find an audience who'd lap it up (unlikely IMO).
I am a vinyl man and for me it has to be OVO but again, its just my opinion. Im sure a lot will side with me but the arguement of vinyl vs CD's is never going to end on here.
What would make your night different, although from reading your post i dont think it's likely, is if you played soul tracks which were only available as MP3 or CD releases. Then it would be acceptable, although probably not very sustainable.
Azza