Go for the WiFi solution. It's a standard method of distribution, all you may need is a slightly better antenna.
I have used one way satellite Broadband when I didn't have any alternative. It's not very good despite all the claims otherwise. You get an extremely limited monthly bandwidth allowance at a very modest 'full speed' and after that it's 'best effort' which will be very low and almost certainly slower than your dial up connection. In addition you will need a lot of additional software that is at best rather clunky. Two way should be better but the set up and monthly running costs are high.
I changed to WiFi as soon as it became available (in Spain) and never regretted it. Almost unlimited bandwidth for downloads and a higher speed for all the data. Plus it doesn't use your landline at all.