Gen 2 hemi swap

Not that they're absolutely necessary, but they also had spacers between the K and the frame. Since you're using elephant ears instead of the K frame mounts, it may not even be relevant.
As far as the pitman and idler, the original LO/BO cars had the big block idler arm, but that was about it AFAIK- but those aren't useable on '73 and up.
Shock towers were clearanced with a sledgehammer by Hurst.