Turn signal hole dimensions

[Traveller]

Hi All.

I am finalizing the build of my body buck in preparation for the kit's arrival in a bit over a week. This will be a minimalist body buck design which will hang below the deck off the back of my house, and I am taking a page from this design with the two primary supports bolting onto the body at the front and rear turn signal mount points:

https://thefactoryfiveforum.com/show...l=1#post165404

Can somebody tell me the center-to-center measurements between the turn signal holes (distance between left and right for both front and rear)? I've been searching for a diagram showing this but no luck.

Thanks!
Jason