Check out yotatech.com. The populus is generally older Yota's with a few 4th gens there.
Engine swaps are very common there and many are fully detailed with pics. If you don't find what your looking for, just make a thread and many will be happy to help.
Patience is a virtue. Many times I have screwed things up by rushing and not thinking it through. Like the previous poster said, walking away when something is frustrating is your best bet. Take your time, and be sure to get everything detailed.
It will be a great learning experience for sure, and will benefit you in the future of working on cars.
If you stumble upon something confusing, try to look it up before trying it. Trust me, I hate breaking things. lol.
Good luck wit it.
BTW, what engine will you be swapping in?