1. GEOSATpro microHD (better and less buggy than the 1200 or 3500 models), Manhattan 1933 (better picture quality and less buggy than the newer 1997 model), iLink 8000i or 9000i. You might find these units used at a very good price. Other members will probably have suggestions of what works well for them. There are other STBs out there, but they are either targeting the theft of services crowd and have poor performance, lack features for FTA (like dolby audio decoding) or the seller is based in China and you are on your own for support or operational bugs. The current North American market STB pickings are pretty slim right now and there are many receivers that I would never own let alone recommend to a newbie.
2. The Maverick PLL KU LNBF has solid performance and a great price point. The Wildblue dish is a bit on the small side, but you will receive most transponders.
The satellite receiver has a built-in meter that is just as acurate as a $500 meter. All you have to do is pick the satellite that you are aiming for, select the correct LNB type and and active transponder. The Signal level reading will show if the LNBF is powered and working, the Signal Quality reading will show when the disg is correctly aimed at the satellite.
Is this the dish model? If so, you will need to McGuyver a mount for a LNBF. Make a template of the exact position (height, distance, angle) of the OEM feedhorn. Remove the existing feedhorn and tria. Use a universal LNBF clamp and fashion a mount for the replacement LNBF. Place the replacement LNBF feedhorn opening in the exact same position as the original feedhorn opening. Adjust the skew angle of the LNBF and connect to the receiver to start aiming.
Edit: Posting before I saw Fat AIr's excellent reply!