In many cases you can find the dishes for free. I wouldn't offer any more than $10 or $15. You will need to purchase a tripod (Camping World, eBay, or Craigslist) or make one to hold the dish (I've seen 5 gal buckets filled with 6-8 inches of concrete to hold a 3-4 foot pole with the dish mounted to that) and some basic tools to find the satellite - compass, signal strength meter, etc. Camping World has some satellite finding devices - worth taking a look.
Hope this helps.
Bubba & Chiquita + Two Vizslas (Barley and Sophie)
2008 Georgetown 315DS SE LTD
2011 Jeep Wrangler Unlimited Rubicon
Sterling All-Terrain Tow Bar - SMI Stay-In-Play Duo
Do What You Like - Like What You Do!