A floor plan may give others context to offer advice. Tough to offer much on a vague description.

We will be using a shower curtain or bypass sliding doors so that is accessible from both sides. However don't know exactly how tight it will be getting in from toilet side

The whole plan needs to be reworked. Body sprays are a novelty the first week. They never get used after that.

Not a shower spray. It's just a head that detaches. I've used it in my upstairs bath for 15 years. I'm not reworking plans as we are in love with setup with vanity wall.

If the goal is just not to get your hair wet when you get in, consider something like the Kohler Hydrorail. (Grohe makes something similar.) I love ours--it has a full height shower head above and a lower handheld on an adjustable rail, and you can toggle between them easily. If you keep it set to the handheld, the water will flow at a height that works well for a child--well below head level for an adult. Then you could switch to the upper shower head, also from outside the shower, when you do want your hair wet. I do think that's the right place to put the shower head and controls given your layout, though--most people do want to be able to turn the shower on before getting in so that the water is warm. (It's also where I have mine in a similarly sized shower--it works well.)

One thing in your plan that I might consider changing is to use a wall-hung toilet instead of a standard toilet. I think the inches that you save would be very valuable to give you more breathing room at the shower entrance. As is, it looks like you risk having the door hit the toilet when it's fully open.

Thank you so much for your positive and well thought out response! That's an amazing option and I can't believe I didn't think of it before! Thank you so very much! We are using a 10" rough round toilet which saved us 4 inches compared to 12" elongated and we switched shower to bypass doors or a curtain!!!