I am painting a 640 and the original fenders are junk. Even though I am probably over restoring it, I just can't bring myself to cough up the big money for the original type Hundred series fenders. Since it is a 640 and nearly identical to a NAA and I am not really going for originality, I thought about buying a set of script 8N fender skins and putting them on the original frames. I kinda like the looks of them better anyways, and I'm not going to show it, so I don't have to deal with the "original police". I also have a set of the X01 series and up fenders and thought about going with them, but they aren't quite good enough for this tractor and probably both need skins also, but they are solid and I hate cutting them up when they have some value but the originals have none. It does have 13.6 rubber on it so I am not sure which way to go. Would like to hear some input on the subject. Thanks.