Reply to Traktor S4 moding... Possible?

Can the S4 get arcade buttons? Here you can get Sanwa buttons lower that 24mm which are used for the VCI100 arcade.

http://www.lizardlick.com/Sanwa-Pushbuttons_c_152.html

Can the faders and knobs be replaced with the ones sold on the DJTT store? I grew to love my green knobs