I bought my Saharan Uromastyx at the Tampa Herp show for $50! It was WC and under fed. It also got an eye infection not a week after I got him! But I nursed him back to health! He is now happy and growing fat! If I was you, I would save the trouble of trying to nurse a uro back to health and just get a CB one. Here is a Before and After pic of my uro.
Here he is the first day I got him.
Here is how he looks now!
And here he was a week after I got him with his eye infection.