Welcome Oreganic! The aftermarket books (Hayne's and Chilton's) are great for basic maintenance (especially when you already know what you're looking at!) but as you found out are not very detailed in the pic department.
There are pictures and discussions here of course, and there are a few that show a stock '76 engine compartment. But it's not the same as having a quick reference guide in front of you.
Not sure if we have anything like that either. We have not been like the rest of what has been a collector car market for a long time, where they have every tiny detail and even what number sequences to look for on an alternator to make sure it's date code correct for your vehicle!
We just modified, added new and better stuff, and went on to the next thing.
Luckily if you're just looking for names for stock things like water temperature sensors, distributors, ignition control modules, or their acronyms for the modern EFI world, that stuff might still be found pertinent in a detailed Mustang book because the engines are basically the same.
However, when there is something unique to the Bronco world, you still have to come here!
Like the others said though, to get you going at least, put some detailed shots in your Garage or Gallery through your user CP so we can look at them and go down the list of what's what and who's who.
If you want to upload images we can see right here in the thread, a better way is to use an online hosting site and link the images to your post here.
The best way (in my opinion at least) is to become a contributor for 12bucks a year and then you can upload images directly to the discussion from your device.
You can also e-mail them to one of us with the yellow "contributor" below their username.
Lots of ways to do it. Some are just better than others. Depends on what you need.
Maybe someone will still come up with a good source of your info. Let us know if we can help directly in the meantime.
Paul