If this is the process you use on a regular basis and when you say "105" you always mean "DG105", then I would say YES you can cut out a step.
However, I would look to cut out PRC before DG105 unless you are positive you do not get enough benefits from DG105.
As it relates to pad use, yellow pads are generally aggressive cutting but if you meant "gold" or "finishing" pad you are fine with that sequence.
Here is what I would start off as a base maintenance detail with those polishing and wax products:
--> Wash, Clay, DG105/White, #26
If DG105/White doesn't work well enough for you then substitute with PRC/White or PRC/Orange.
I don't understand "sealant by hand" as the last step so I am hoping that is just the way your message was formatted. After #26 (which I think you mean Megs #26), you should be done.