fourseven

Yes, I meant in the boot node. So take extra_3&_4 and place them inside of the boot node.

That question I have no solid answer for. I have had them work and look good in various positions, but usually just follow the instructions provided in the download linked. 
I want to say Origin make sense, but my so far what makes sense to me has been wrong with working with els. 

Don't know if you have already solved this issue, however to fix it when I had this problem, I had to manually rotate the dummies for the lights that were backwards. I tried doing one dummy at a time to ensure it worked and that ended up fixing it for me.
 
Again not sure if you managed to fix this already with Caffeinated's help.

I'm going to send you a dm.

So run me through what you did exactly. You merged the z3d save for those parts and then what?

Post the ELS Config for us to look at.
 

I missed completely that you also said your take-downs are backward.  You need to relocate and resize your dummies for the front facing lights.  Is that a sound off front-bar ?