Ill keep trolling ebay and see if I can pick up a used one. It seems to be a pretty awesome little tool. Is there a specific brand or type that is better for the LR3 than others?

The brand is GAP Diagnostics and the model is IIDTool for LR3. I don't think that your plan of finding a used one will work. They are "keyed" to a specific VIN. You'll just have to save up your pennies and buy one new.