stilton . . . for the classics, cockpit configurations are exactly as the original paying customers had ordered.
Some customers wanted switch positions reversed, fuel flow in the back, N3 up front, N2 in back, transponder on the overhead, transponder on the pedestal, Surface Position Indicator next to the captain's right knee or the copilot's left knee, pneumatic control on the upper F/E panel, or on F/E center panel, A/P switches on the left side of glareshield, or on right side of glareshield, A/P switch positions as A-B-C or A-C-B, . . . etc, etc, etc, etc.
Thankfully, the glass cockpit birds are much more standardized across the airline spectrum.