If anyone here is new to rattle can refinishing, I've been using a quick and easy method that gets great results for a solid color matte finish. It gets rid of a few steps, and uses products that are readily available in any big box store. Assuming you have a pre-finished body in good shape (no dings, gouges, etc.), it's fairly foolproof and inexpensive.
1. Body prep: wipe down with alcohol wipe to get rid of any fingerprints, dirt, etc. No need to sand.
2. Tape off neck pocket and all cavities.
3. Spray color/primer in one. Krylon Colormaxx or Fusion is what I use, but Rustoleum 2X Ultra is also fine. Start with extremely light coats, then continue until you've achieved good coverage. I do all this in one session.
4. Let color dry overnight, then spray Krylon Colormaxx satin clear (Rustoleum satin clear if you're using their paint). Start light, then go a bit heavier. I do all this in one session as well.
5. Wait 3-4 days, then buff out to matte with 0000 steel wool. Try to get rid of as much shine as you can. If you like how it looks without buffing, leave as is.
Will this end up "matte" enough if you use a gloss color coat? Also would love to see some pictures and get your perspective on how the finish feels under your arm.