All the additives you listed in your original post can be added to each other and dosed as one. However, I'm not sure if you could use a doser as I don't know how these additives would react to each other when mixed together for such a long period. Also, CV needs to be refrigerated after opening. You will want to change the dosing as well as you go. You may decide you want to add more SP and less CV for example, and that would be difficult if you mixed it all together already.
Most people suggest and practice dosing most additives (especially food-type) at night after lights out. This gives the corals time to use the additives before the lights come on. I find I get the best daylight polyp extension when I dose Zeo at night as well. If added during the light hours algae may have a better chance to enjoy a portion of your additives.
When I dose, I have a small glass cup that I put everything (that is compatible) into, mix it up, let it sit for 5 minutes, then add it to the sump in one go. The CS will take some agitation to get the residue out.
Also, I would suggest you dose 1/2 of what the bottle says (the Zeo forums will suggest this as well, but in more words). For example, instead of dosing SP 1 drop per 25 gallons daily, dose SP 1 drop per 25 gallons 3x per week (or every second day). The dosing suggestions on the bottles is quite aggressive. You will find your tank may be sensitive to dosing of one product or another, and may use aggressive dosing of another. For example, my tank is sensitive to CV dosing I have to dose very gently or I will get cyano and diatoms. I can dose the heck out of PIF though.
