TE Fightsticks

Are the L2 R2 buttons on the TE Fightstick smaller than all the others? So are all buttons 30mm?

They are all 30mm except for the Start & Select, which are 24mm i believe.

also on the back of the sanwa buttons it has a number 1 or 2 does it matter where you place them on the fightstick meaning at the top row or bottom?

It shouldnt matter at all since its the connections that determine which buttons does what.