I am a fan myself but I thought it won't work on that frame, especially with a fancy paintjob like that... and if he will choose to stick to the 600 tricolor.
It's all about trying out, I just hope he won't choose to get an ahead adaptor and put a ahead stem as somebody understood :)
new rims, handlebars and you are ready to go in my opinion!
black stem alone doesn't make much sense...