try to move you anchor point to where you’d like it on your image, then copy the anchor point values and paste them on the position values. should put it back where it started…
As you work, add a word to the comps you know you will render, something unique. Ie: RENDER. then you could use the find feature to only show the comps you’d like to render select all and shortcut them to render que.
Create the final look you’re after and keep it 2D. Use a linear wipe to reveal the lines (adjust the length of each wipe to show various depths) , they’ll have the look you’re after.
I think you’re making this way too difficult. If you need to hire somebody, hire a graphic artist to make the “chalkboard” elements for you. They will be ready to animate and placed on top of a chalkboard bkgd.