Help Lining Up Lines on Hood With Front

[zentrified]

Hey guys, I am trying to make a Lowe's paint scheme and I am using the old Jimmie schemes as inspiration, I was just wondering what the best way of lining up decals from the hood to the front end is. Here is what I have so far, but it is just guess and check, and doesn't look very fluid. Could someone fix this scheme and/or give me some advice for the future? Specifically talking about NCS22 paints, if anyone has gridlines or something that would be sweet.

 

[Rollo75]

If there is a grid layer, them someone has already worked out your alignment.

If not, then don't.
Just make sure your fields flow together and be done with it.

 

[Paul Sutton]

I made a flat combining your paint and the UVW map you can see the front lines are not correct .

 

[Paul Sutton]

This is a render with the uvw mesh highlighted in white