I made an earlier post inquiring about rust removal, thinking that I would only be touching up areas where the paint was worn away on my steel, David Scott Centurion Iron Man from the late 80's.. From the pictures I posted, it was suggested I strip the frame as the areas were too large to effectively cover with any touch-up operation. I have no prior experience stripping and painting bikes, but have an interest in doing so, but also weariness of potentially ruining my bike. I neither have a great familiarity with bike mechanical work and therefore lack perhaps essential tools, for instance, from what is available in my garage I don't seem to be able to remove and reinstall my threaded headset or my bottom bracket(were I paint my bike, could I cover those parts I wish not to be painted or is it always better to avoid such a risk?), and for applying paint I don't have a pressurized sprayer. However, from what research I've done (https://www.sheldonbrown.com/paint-prep.html) and what's been given to me on the forums, the general procedure seems:

Removal of Rust - Sand paper then application of phosphoric acid
Stripping of Paint - Any recommendations on paint stripper for Steel frame bikes?
Priming - Sanding with emory cloth to abrate the surface in preparation for primer spray
Painting - I would be using a spray can

Does it seem I have an adequate idea of how to proceed, is it an issue that my bottom bracket and headset are still intact, is there any general advice one who is more experienced than I could give? Thank you very much for any information or suggestion contributed!