Thanks skeeter! Maybe you were busy doing thread necromancy in the other sections for cool ideas and didn't look through the emergency section? Maybe nobody pays attention to emergency vehicles or moves over?
I figured out a steering solution that i'm happy enough with for now.
The jrl viper donor chassis had a cutout for steering centering that the lower servo mount ear drops into, the white brace holds the servo in place with a rubber servo mount crushed against the top of the servo. A 3mm screw connects the horn to the draglink. I'm going to do a brass bushing or something later so it won't chew up the linkage.