Engine install

[MrSpool]

I apreciate all the help on my last post, so the Disco I found does need an engine, I think I will stick with the 8 but I will probably do a propane conversion. However I have a question, how difficult is it to swap an engine, I have heard that most items on these are easily acceptable, but i have not found much info on engine replacements. I have done several in the past on four bangers and have done several tranny installs one was on a pathy, which I heard was one of the hardest trannies to work on. any ways any info in the way of what will be needed or if anything above and behond the ussuall is need would really be apreciated. Thanks.