Battery Mount - right parts?

[bemmett]

I emailed the fine folks at Rennline, but haven't had a response yet so figured I'd solicit the collective wisdom of Pelicans.

I'm looking to get rid of the boat anchor OEM style battery for my '87 Porsche 911, and had a few parts questions. A couple things:

• The car will never be tracked
• I want to leave the battery in its standard location
• I do want a kill switch to both protect the battery when the car is sitting, and as partial-not-perfect security measure

I'm looking at the following parts:

• Kill switch : https://www.rennline.com/Rennline-Battery-Disconnect-Switch/productinfo/EL-28606/
• Battery mount w/ kill switch mount : https://www.rennline.com/Rennline-Battery-Mount-Kit-Odyssey-925-Switch-Mount-Porsche/productinfo/EL30.34/
• Battery : https://www.rennline.com/Battery-Odyssey-925/productinfo/EL-PC925/

Since I plan on keeping things in the existing location, and reusing wiring as appropriate, do I need any other parts to make this work with the kill switch? I wasn't sure if some of the additional wiring that Rennline sells was also required, as the description seems to suggest it's only for when relocating to the smugglers box.

Do I need this, for instance?
https://www.rennline.com/Battery-Cable-Kit-for-Kill-Switch-Installation-SAE-Ter/productinfo/EL22/

Any insight super helpful! I've got money burning a hole in my wallet.