7.1 DIY audio switch, please help

Dear Instructables community,

I stumbled on to this site while looking for a DIY solution to a problem where no commercial alternative seems available. The problem? I need a dual input/output switch for my 7.1 audio system.

What I found on this site was: https://www.instructables.com/id/35mm_51_Surround_Sound_Switch_Splitter_Box/

I'm "OK" with a soldering iron, but I've never really built anything before, and I'm not familiar with some of the terminology. Really, the only things I have done in the past have been soldering plugs on the ends of wires and re-soldering loose connections. Even so, I'd like to build something similar but for 7.1 with dual inputs and outputs.

I'm hoping you can help me make the right choices building this.

My original plan was going to be just like the 5.1 version with a few most switches, but instead of the input 3.5mm jack as the source for the switch, I would just connect another switch and then connect it to two 3.5mm jacks.

(See attached image)

Will this work without taking a hit in audio quality?

Is there an easier or more efficient way of doing this?

Here's the hardware I selected initially:

Switches: http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=76260&

3.5mm jacks: http://www.allelectronics.com/make-a-store/item/SMJ/3.5MM-STEREO-PHONE-JACK-W/N.O.-SWITCH/1.html

I don't understand most of the terminology on these parts, but they look like they should work.

Please let me know what you think, I'm open to advice.

Thanks!

Picture of 7.1 DIY audio switch, please help