You are paying <$100 to set up a service, and then maintain and host it for a year? This is not a bounty; you are asking for volunteers.
Hardly true, setting up this service will cost you $0 if you have server. If you don't maybe $30 per year for a cheap VPS.
Maintaining a block explorer isn't exactly a hard task. Just the occasional wallet update taking a matter of mins to do.
Plus you can make additional money with advertising etc if your not satisfied.
Anyway, anyone built a block explorer yet
?