Electrical system question - Bussmann

So I'm planning future mods while I'm installing my new stereo. I have been looking at Paranoid Fabrications relay holder. I'm not sure if I want to use a Bussmann set up or to get a plain one. My question is what mods would I need to put a Bussmann to good use?

 

I did this one for around $120.00. pretty easy to fallow.
https://www.tacomaworld.com/threads/diy-build-and-install-a-bussmann-rtmr-fuse-relay-block.399454/

 

Right. But how much electrical stuff would warrant buying this. I only plan on a few off-road lights, stereo and a few things. Nothing crazy. So just wonder if I have minor plans for my truck, if its worth doing?

 

with the lights it will be useful, but if you are only running one set of lights, then its kinda overkill. If you plan on adding a few items that need a relay then its a great idea and is super clean.

 

Rule of thumb, 120 watts is 10 amps of current at 12 volts.

Fuse everything you add.
I like that fuse, relay setup. It's convenient and clean. And will make life a little easier when adding circuits. No more, "which fuse should I, tap with an add a fuse to power whatever it is being added."

I didn't read the whole thread in that link @whipper replied with. However, looking at the pics it appeared to have fuses you could hook up directly to, and fuses feeding the relay contacts. If they're pre-wired, all the better, you add a switched wire to turn on the relay, and the new toy on the other.