I do not have first hand experience, because my car came to me with existing, original-type but functioning Houdaille shocks, but I have heard good things about the Ken Davis shocks kit (
http://www.kendavismodela.com) designed specifically for Model A use, and they cost about $250 for a set of 4. Ken Davis shocks are tube-type and not "correct" for judging, but fine if your car is a driver. If money is not object, I recommend the correct and quality made Bill Stipe "Houdaille" shocks; they are reknowned to be the best, correct, fully-adjustable, refillable, and beautifully machined.