Re: "Selling the FJ, what is the next logical step for crawling?"
Start with a JK. Even better, buy some else's JK. If you have to stay Toyota, double cab Taco on one tons. Motor doesn't matter for crawling. I have one hardcore crawler, a 78 Hilux on 40's with a 20r on propane. Probably a whopping 75hp. I also have 1 87 4Runner on 35s. My FJ is lifted on 34's and sucks to wheel compared to either truck. The big body gets into everything and the visibility is ****. I wouldn't even consider a FJ80, they are giant rock anchors.