Probably unrelated, possibly remotely related... I was admiring a 32 3W street rod at a car show. The SN was clearly visible, and I immediately noticed it was NOT a 32 SN, and also that it was clearly a factory stamping. I made a note of the number, and later looked it up. The SN on this frame was for a 41, and the fabricator had obviously and carefully grafted it into that repro, street-rod 32 frame. Though not exactly related, my point is that somewhere along here is a line, if crossed, leans towards fraud. Point, be careful. In my state, I'm pretty sure that ANY re-stamp is illegal. Not sure about that, but worth looking up if one is tempted. Just opinion...
I'm aware of, and have first-hand knowledge of, one example where the person with a 32 (not the example above) had the car impounded by the state, and as far as I'm aware, I believe it was 'bye-bye-car'. I happened to be the party with the correct, original 32, which happened to have a serial number that duplicated the number the other person had been using. Actually, I'm not sure of the final outcome, as I was friends with the DMV Manager that caught this, and a deal could have been made with the other party for him to bring his car into compliance. My DMV Manager-friend suggested that a deal was possible.