Shaven head as a sign of submission.

I've considered this even though I'm not in a relationship. When out, I would wear wigs unless I wanted to dare to bare

IMO, that's like wearing a collar when not in a relationship. It's a fashion statement.

Following your Dom's orders, including their making fashion decisions for you - and your compliance - is a sign of submission.

Don't do it.

I think it's also part of my desire to have a totally artificial look. I've already done the dental with a full mouth reconstruction and nails are a quarter inch beyond the tip. Underneath I'm totally molded by firm shapewear

This isn't a sign of submission, it's a sign that you need help to accept yourself as you are.

If you are not in a relationship, who are you submitting to?

Then if you were to enter into a relationship with someone you wanted, what if that dom wanted you to have long hair to pull ?

You may want to hold off until you are in a relationship and satisfy someone with a hair style, etc.

I think a far more incognito approach would do better. Its dedication within submission, and work over time, not how big you are willing to go.