Shop for Gearbox Modification?

[SquadraCorse]

I bought a new to me transmission assembly with 5000 miles on it to replace my worn out setup. It includes the forks, drum, and both gear stacks. I'd like to get this modified before I put it in my bike by undercutting the dogs. My sequential gearbox experience is limited to various race cars, and not bikes. So can anyone recommend a shop that would be able to do this to the dogs in my FZR gearbox?

[cad600]

Here you go.

http://www.aperaceparts.com/transmissions.html