I can post these pictures of the original U302 & M602 Emblem which looks like cast aluminum and mine is milled out out of 1/4" thick aluminum plate. These are 5" x 7" and it took while to do(3.75Hr) so if the ones in the picture are quite a little larger it would take more time. As far as cost it would be excessive and I'm not really trying to make money doing this stuff so maybe we could work something out that is reasonable.
We have a later U302 Super Tractor that had a thin tinny emblem on so I wonder when they went with the changes on that. These emblems are solid cast aluminum and like Alan said maybe a lot of trctors had the same one. That why I would like to see a sample and how big the letters are. I'm sure anything new would be better than having none or a broken beat up one but my opinion is anything that been in use almost 50 years is going to have some character from it's use and abuse.