Multi-conference Redraft

I’m thinking about starting a multi-conference full ppr redraft league. 4 conferences (each it’s own separate NFL player pool) 10 teams 2qb/2rb/2 or 3 wr/2flex with a 5 or 6 man bench and FAAB waiver system. Playoffs would be the winners from each conference plus the next two best records. Probably $100-200 entry. 40 total teams. Leaguesafe payment. I going to run It on sleeper. Is there any interest for this type of league?