So My panel is going to be a radio short, but I have squeezed out enough moolah to spend about a 1,000 bucks on a radio, yellow tagged KY197's used are going for around 800 bucks, the SL40's are going for 1200-1700 if you can find em used, I suspect this will be my #2 comm behind my KX155. So my panel now consists of a KMA24 audio panel, KLN89B w/KI-202 indicator, a KX155 wit a VOR/GS indicator (not sure what variety) and some sort of Narco Transponder thats over on the very right side of the panel on top of the glove box. Should I stick with King and spend approx 400 bucks less or is there something magical about the SL40 that would make it worth the extra money?