My very conservative estimates based on 200 hours utilisation, presuming you will insure and hangar it, is $115
Based on my experience, $50/hour wet *direct* running cost is normal for an LSA.
Regardless of type, if you can't get at least 500 hours a year on a training aircraft, it's not worth having it online. It'll probably cost you back $75/hour wet.
if you add $30/hour to finance it you might have a free aircraft in 10 years.
Now to run it as a business ... I guess you need plenty of aircraft doing 1000+/year each to make it viable!
In short: a good LSA is a good training option, but it certainly won't revolutionise anything with incredible low cost. Still, getting a $25/hour advantage with your new LSAs compared to the guy with a 30 year old 172 and 40 year old 152 may well mean people walk through your door instead of his.
(Or not, because someone PPRuNe told them prospective employers want you to have "Cessna time" and "they won't look at you if you did your ab-initio in an ultralight".)