6 brushed motors on one channel?

[Dunga_CZE]

Question is, whether you want to use a single ESC or individual one for each motor. Afterwards you have to decide to use one or more batteries.

6M, 1ESC, 1Bat. - easy, you just split cables from ESC to motors.
6M, 2-6ESCs, 1Bats. - you split cables from ESCs to motors and from battery to ESCs as well as you'd have to split (or you Y cables) from Rx to the ESCs.
6M, 2-6ESCs, 2-6Bats. - you split cables from ESCs to motors and from battery/ies to ESCs as well as you'd have to split (or you Y cables) from Rx to the ESCs.
6M, 6ESCs, 6Bats. - easy, you just split cables from Rx to ESCs and connect the rest as if it was a 1M, 1ESC, 1Bat. setup.