1/32 a-4e/f lettering

During my recent move, we all have unfinished models in our collections, well I am came across 1/32 Has A-4E/F “lady Jessie” I was planning on building it with a young person help (he just starting out) It basic large scale construction would be a good learning tool. Here is my ? I would like to change the lettering from “lady Jessie” to Angela in honor of my better half (who supports all these projects without a word) So I know their no decals for that name what size lettering should i get?

P.S.

I also going to upgrade the cockpit my project with aftermarket set, major project or normal?