Few soil questions

Hey fellas, so I have large bags of roots organics, large bags of coco loco, medium bag of kind soil, some subcool fertilizer (from amazon).

I was wondering if coco loco would be too hot for seedling. Also would coco loco and roots organics mix well? I have jiffy 7 peat pellets for seedlings, I would like to surround this pellet with coco loco if it's not to hot, then the outer layer roots organics. The autos will be in a 3 gal. All add some subcool fertilizer week 4 or 5 as a top layer. The kind Soil I'll be saving for the fem seeds.

Does this sound like a good attack plan?

Coco loco is just coir. It's got no nutrients whatsoever so it won't burn anything. Use it for starting seedlings or you can simply add it all to your base mix. I would just get a bigass tote bin and mix it all together. Once they get past week 3 or so you can transfer directly to your fertilized soil mix. I prefer a 50/50 coir/soil mix for seedlings but that's just how I roll. Jiffys dry out too fast IMO.

The bag claims it has bat guano and work castings...

Maybe I was looking at something else...it's made by fox farm? Also called Bush doctor? Looked to me like a hydro medium but maybe I'm looking at something else... coconut coir is a very good soil conditioner; harbors beneficial microbes and fungus.
Either way worm castings won't burn your seedlings...guano could if it's there in heavy amounts. As a matter of fact I would add even more EWC and maybe some extra perlite for aeration if doing that made the soil too heavy.
If you mix all that stuff together and just give them water only it would surprise me if your plants showed N burn. What you have there could be a decent quality base soil if you just mix it all in. Then just keep recycling and amending it for subsequent runs.
Look at the 3 numbers on the bags of soil or fertilizer you have. In organic soil you typically don't want to give your plants anything with an NPK value much higher than 5. Most organic fertilizers are around 5-5-5 or less. If it is balanced like that the chances of nitrogen toxicity is very low. Plus these are slow release solids; very unlike soluble nutes that are already available all at once. You can layer it in your containers if you want but I would just mix it all in.

Thank you sir. Very informative.