S13 Auto vs S13 Manual chassis wiring differences

So what are the differences? From my understanding it is just the lower harness and the fuse box…is this correct? Is there any way to change this?

Reason behind this is I am putting sr20 into my auto s13 chassis. I am going to use a Wiring Specialities harness. Now they offer the harness for Auto or 5 speed cars but I want to use the regular 5 speed harness just for re-sale purpose.

Google has yet to show me a guide for changing wiring from auto to 5 speed as it isn’t really needed for auto to manual swaps…