McIntosh c2600 Home Audio Setup

Hey Happy 2021,

I am new to the platform and I haven’t figured out how to create a proper thread.  
I have some audio equipment and I have been trying to figure out how best to setup everything to what I prefer. I’ve got a c2600 and I’d like to use multiple speakers with it. (It’s probably not wise; what do you think?). What I can not figure out with my limited experience is how to connect the multiple units and speakers; was thinking I could use the Cr12 as somewhat of a speaker selector (??) or purchase a separate one but I’m not sure if that would damage something or degrade the sound. Here’s what I have to connect or exclude:
Marantz Sr5013
McIntosh MR71 or 1900
McIntosh C2600
McIntosh 2100 & 2105
Rega Planar2
McIntosh Cr12
Here are the speakers:
McIntosh ML-2C
McIntosh XR-7
(2) Klipsch Reference Premiere RP-8060FA 2-Way Floorstanding Speaker with Dolby Atmos
Cerwin Vega SL-45C center speaker
(2) Klipsch R-120 Subwoofer
(3) McIntosh MQ102 Equalizers
Monster Power HTS2600 mk2
Monster Power HTS3500 mk2

I’d like to setup the c2600 with XR-7 & Klipsch Speaker pair
With one Klipsch subwoofer? (I’m probably losing my mind though lol)
I’d like to setup the Marantz for surround/movies/sports

any advise anyone could provide or how to start a thread would be great. Thx in advance!