Paul nailed it as usual.

Get an all French lace base for your first unit. Very forgiving but still undetectable.

I would do 70% density with bodywave curl, forward ventilation.

That style will be super easy to pull off with a full cap. It is always better to have it cut in when it is on your head, but since you aren't going with a short style you can probably get away with sending it out for a cut in if you don't mind doing some minor touch ups when you finally get it attached.