Cost of the home internet boosters

This isn't to dissuade you from getting one of the WiFi signal extenders, but keep in mind that they extend the signal in only one direction, as you basically put it halfway in between the HughesNet modem and where the signal drops out, extending it further in that direction. 

If you have a single area of your home where the signal drops out the extender may be the answer. But if you're finding it drop out in more than one specific area, you might be better off looking into a buying a router with better WiFi range, as you're not required to use the HT2000W's built in WiFi. You'd basically connect it to the HT2000W and disable the onboard WiFi so that it doesn't interfere with the new router's WiFi. There are decent routers with good WiFi range for under $100 on Amazon.