I think some of the vendors have stick-on stencil material. That would make things a lot easier. You do know that on your truck, painted CHEVROLET letters were not stock, right? But go for it if that's what you like.
[on edit] They sell decals, but you might be able to use them to paint the letters first, apply decals, paint the body color and then peel the decals off to reveal the lettering color underneath.
[Another edit] I've made some window decals from a clear plastic static cling material. Possibly that could be used for stencils that would stick on the base coat after it's dried to keep the spray from getting underneath. I haven't tried using it for painting, but it might be worth looking at.
Last edited by klhansen; 10/26/2020 4:49 AM.