I've never worked on a van before

I need precise instructions to replace the alternator on my 93 Econoline. I have limited experience working on cars, but I've done the basics, brakes, starter, fuel filter etc. I've never worked on a van before, and it looks pretty crowded in there. Is there a guide or instructions that gives specific step-by-step directions in order to get to the alternator and replace it? I know this is a long shot, any help would be unexpected and incredible.

It's the e-150 with the 5.0 I believe