Epoxy primer question

Here goes a paint question, and yes I have searched the forms but don't see anything that addresses this. Before some one ready this and assumes I am talking about painting the car in sections, I am only talking about doing this with the direct to metal epoxy primer from PPG or House of Kolor.

First, my car has had at least one repaint on it and I'm not sure if it has others or not and also do not know what steps were taken during the repaint but I have serious doubts about the quality of the work due to the less than adaquate finish cote of single stage summit paint. For this reason I am seriously considering taking the car to bare metal. Here in Central Texas with relitive high humidity that poses a problem, rust starts to set almost as fast as bare metal is reached making it very hard for a weekend worker to get the complete car to bare metal and getting primer on it before surface rust starts to show up. I am thinking of sectioning the car off and taking a portion down to bare metal then priming that section before moving to the next section, I don't see this as a problem with the two front fenders, doors, hood, and trunk.

However, that still leaves the core of the car. This is where I will need to split the car into sections. I can see doing the top, A&C pillars and front & rear pinch welds first, and then splitting the rest of the car into the left and right sides. I guess my concerns are where the epoxy from one area would stop and the next area would start, but with proper sanding the fresh epoxy should adhere to the already applied epoxy allowing the edges to be feathered in. I have also not decided on how I am going to get the car to bare metal but I am guessing it will be a combination of chemical stripper and a random orbital sander with 80 grit.

Keep in mind the epoxy primer will not be the primer the color will be sprayed to but rather a sub primer. I plan on doing what little body repair is needed on top of the epoxy using a final skim-coat with a final sanding then shooting a 2K primer over the entire car with the color coat going within the recommended window.
As this is a lot of work I don't want to screw something up here so I would like to hear from some folks that might have done something similar.

Thanks,
Bobby