How much do you think you can get the FI going for? When I totalled it up a while back I was looking at more than a grand once I got a turbo, figured out how to mount it, got the correct tubing to run for the intake and exhaust, thermal protected or moved the sensitive items in the bay, bought some sort of standalone fuel and timing system, upgraded the fuel system, ect. Then I have to factor in my time. The stroker only cost me $1200 running out the door, with some extra stuff replaced.
For rock crawling I would go stroker all the way.
I like FI, I have been planning an Eaton blower for my cherokee for a while. One of those things that might happen after I get out of training.