Guys you should think about another fact. Look at all the SD's which were builded over the years! They are varying considering bezel teeth depth and chunkyness of the crown guards. So you may want to do a research on the web and you will find out that some gens DO look like your rep! Newer models seem to have a tinier bezel and CG's.
Another point which varies is the recessement of the SEL's between the lug ends. Older 16660 are significantly more recessed than newer models and so on.
I reworked the teeth of an old SSD bezel with a needle file and repolished them because they were too tiny. It is doable but very difficult. As Ado told you need a lot of mashining to do this in a professionell way.
Cheers
Andi