Glad you already have a less oily scalp, I had that the first week as well but some do suffer for a while!
Don't choose your products based on titles/ straplines (volumising/ curl enhancing) buy them based on ingredients and your hair properties. Some products are volumising because they ruffle the cuticle or contain salt which is not healthy for hair, others because they contain protein which is better.
the only Curly Girl hairspray is Deva: commercial hairspray contains drying alcohols, often polyquats and/ or silicones.
Conditioner is not simply for 'moisture' it has multiple functions, encourages the cuticle to lie flat, reduces friction reducing tangling and frizz, encourages clumping, protects the hair from any negative effects from gel etc. You can use the same wash out and leave in conditioner, many of us do. Water it down a little if you feel it is too rich.
Wash and style upside down and use root clipping for volume. Hopefully regular protein will also help with curl and volume.
The Ion reconstructor doesn't actually seem to contain much protein, it does contain magnesium sulphate which is curl boosting but drying and propylene glycol which is a humectant. IMO buy some Colorful neutral protein filler from Sally's next time, you can use it straight up if your hair can take a lot of protein or add any amount of your choosing to any of your products.
Or consider Komaza Care Matani repair treatment spray - very lightweight, contains hydrolysed protein, ceramides and panthenol which are all hair friendly.