Amp power routing

[Piston]

Ok so im setting up the wall for the amps and wiring. I'm a bit concerned with how close the power/ground is goin to be routed next to the inputs. There's about 4-5 inches between the 2 and I plan on running the power/ground above the board and around the amp to the distro blocks. The RCA leads will come through an access hole in the backboard.

Think its too close? I'd need to re-arrange the amps and hate to do that because it lends the perfect spacing for a ZX850.4 above the 2 1500.1's

[Supa_c]

Why not mount them vertically ?

[Piston]

Thats my next option, just though it looked better like this.