Will you be using a rotisserie? If not I’d suggest you get all the parts for the back added whilst you can lay it flat. Once almost complete you can flip over and start populating the front with it standing up.
Deffo be easier with rotisserie though as you can just parts as you get them front or back.
Ground braid next (does Adams have it? I’d have to check lol) you will want to put in the pop bumper screws as well as they are pretty nasty and scary to hammer in