Chris it will be easier to put the fret dot markers on now in it's building phase. You won't know the scale length until you work out distance nut to bridge saddles so it's a bit of a way off now.
It's just worth planning the build before you do a step that will make it more difficult later, been there/done that.
I'd probably purchase your binding. Be best to glue the fingerboard to the neck first as central as you can, let that dry. Then you will be able to glue the binding and it will rest flush against the prouder neck part. Make sure you have ample clamps as both of these steps should have as many clamps as possible.
You will learn the more scratch builds you do that planning is very important and can save some dramas down the track,.
You have really thrown yourself in the deep end with this build but it's coming along well