Your question is bizarre. You talk about being really into the whole survivalist thing, but the infrastructure necessary to hold down a tech job while in the deep wilderness living off your wits is a complete non-starter. (Pedaling for power? Seriously?)
Simply put, your biggest problem is power. (You'll need a LOT less power if you can figure out how to work with a tablet and bluetooth keyboard instead of a full laptop.) That means you are going to need a "base camp". That base camp will need supplies of food and fuel, and a large sunny clearing to collect power whether you are there or not. You can periodically return to swap out batteries/machines and pick up fresh supplies of food and fuel.
You'll need to (obviously) work within an area with cell phone coverage. But there are plenty of fairly remote places that fit that bill, so it's not a big problem.
Discard any idea of hunting for food or cooking with a fire... if you are hungry and in the middle of hunting something or gathering much-needed wood, you are going to get even hungrier when, inevitably, your phone starts to ring with a new problem. You can certainly go several days without seeing another soul, but "living off the land" is just not going to work.
Also consider what you are going to do in bad weather. I'm guessing that once your phone rings, it means something is broken. You'll need to start working pretty quickly, and likely will not have time to make camp if you were in transit at the time. (Please don't say it's realistic to work outside in the middle of a rainstorm, no matter how tough your gear is.) Do you really want to be holed up in a tent (or lean-to, cave, whatever) for days on end when the weather is bad? No, you don't; that's boring as $hit.
Really, if I were in your place, I'd have a base camp (at a regular campground) with a pop-up camper and small and quiet generator (and secure locks!) and go on hikes of one or two days (those small lithium power packs and an iPad would work great!) when the weather looked good. It ain't "roughing it", but trying to get work done in lousy weather when you are hungry and tired is just silly; your work will inevitably suffer as a result.