Alternatively, refile your articles and stock purchase agreement and tie that capital to the stock purchase or initial contribution. I would still recommend founder loans instead. If you use a SAFE or other convertible debt on amazing terms, future investors may ask for the same terms.
Edit: I financed my startup (https://rumble.run) that way and paid myself back a month ago. Painless all around.
The second part of your plan is unclear to me. When you issue employees options, those will generally be options to buy common stock, not preferred. And if and when you raise a priced VC round for preferred shares, all of your SAFEs will then convert to preferred shares.