Evens engine harness, not made right?

Hey guys, i called Evens about this, but havent heard back.

I ordered a 70 Duster Slant 6 engine harness from Evens. When i called them, he said he had not made one for a while.

The Duster has PS, no AC, no other options.

The original( or the one that is still on it) middle bulkhead connector has a open top right connection.

The Evens harness has a open second right connection.

the MyMopar diagram is kinda confusing to look at, but if i go with where the fusable like it shows top right as M (Brown)the Washer Motor, which it has a foot pump

The Evens harness has the second right wire blank, which, going by the same image on the MyMopar diagram shows a Green with red trace wire, which is in the original harness, L wire which is the horn.

I dont really care about the horn( i use my middle finger) would i run into other issues if i put this on, or should i send it back?