Create a line starting at a point, and ending a set distance towards a perpendicular line in Model Builder

[VillageOf_Lake_Placid]

I am working with a small electric utility, we are trying to conduct a lighting study with some of our street lights. Currently our system models utility poles and lights as different layers, that are currently coincident. What I would like to do if find a way to create a line of a set distance, the arm length, starting at the pole and directionally towards the center of the road. Then move the light point to the end of the newly created line. Is there a combination of tools or techniques that could be utilized to do this in model builder? 

Attached is what I've done already, and would like to try to find a way to do at a larger scale.

[VillageOf_Lake_Placid]

I've got this working! Thank you so much for the help, I would never have gotten nearly this far on my own. It requires some fine touches here and there but will safe a metric ton of work. Thanks!

[VillageOf_Lake_Placid]

Fantastic, I am still working through the code you sent and trying to get it to work. I thought something along the lines of creating points along a line, then split based on that point. I will try to integrate this all together and see if I can get it to work!