First you have to build a headed. The headed contains all the electronics. You will need one satellite receiver and modulator for each satellite channel. With all the power supplies, amps and such, this can cost about $500 to $1000 per channel.
To distribute the channels, you will need to run a trunk line and tap off for side lines or directly to homes. You will need legal permission from all property owners ect....
However, before you can even start adding up the cost, you need to find someone who can sell you programming. That is not hard, but the monthly cost must be known before anything else.
Unless you are planning to cover at least 50 homes, who all have no access to satellite because of no line of site, the numbers will not add up for you.
There will ALWAYS be some channel consumers can get by going to their own satellite TV system which you will not provide. Consumers will want HDTV, that will cost you ALOT MORE. They will want DVR's. Unless you can secure financing from a manditory home owners association (They pay if they do not use it). Keeping subscribers will be hard.
Even for an apartment complex, the cost for a SMATV system runs $50,000 plus, and you have to distribute to homes, which I assume cover a larger area then an apartment complex.
If you are only looking to distrubute local, over the air broadcast, their might be a chance. Please provide more information.