47-59 Stance / ride height

[-Dan-]

I ran across a picture of what I want for ride height / stance, but I don’t know what I am looking at. Is the truck pictured a stock ht with a 2” drop in front?
To avoid doing things twice, I believe that I need to decide on engine then order suspension parts accordingly. I want a BBC.
I intend on boxing the original frame and using that. I’ve tried the search function here and find very little concerning BBCs in the AD trucks. I suppose that there is a reason for that.