"35 mile range on electric only - good enough for me (probably could pick up a used f150 for, what 5 grand)?"
35 is under ideal conditions, "estimated" ideal. Ie, less than 20 miles. Ever test driven an electric vehicle? I've test driven the Volt. It has an estimated range of 35 miles on electric. I watched it not last 20.
If you pick up a used F150 for 5 grand it's either old as Moses--and, thus, in poor shape--or in poor shape.
I hate to ask this again, but do you have any clue what you're talking about? It seems not, begging the question of why you post such baseless conjecture which common sense and the tiniest bit of life experience render laughable.
"wonder how much the conversion would cost - maybe another 5?"
Have you ever worked on an automobile? Okay, silly question. Let me just inform you that the labor and necessary parts for a conversion (motor, battery, adjustments [regular 150s do not leave space for all this crap]) are easily going to be over $5,000.
"Now for the camper and solar-array / wind generator."
Yeah, because living in a camper is really desirable. Have you ever spent much time in one? Rather cramped. Not desirable living conditions.
"Maybe another 5 grand?"
For a "camper" capable of living in (for more than a few days) and a "solar-array / wind generator" capable of supplying all desired electricity? LULZ. You have to be kidding.
"A fair-sized lot of land out in the sticks off-grid (within 35kms of a ski hill, hopefully): maybe, what, 40k? Easy..."
I'm sure you can find a completely undesirable plot of land for that amount or less. But, then, that's a completely undesirable piece of land. Why are you talking about it like anyone would want it?
"Cost to build a little cabin on a lake shore in the woods there: do it myself, since I can live in the camper while I do it. Could build a nice-enough place for maybe 15k."
You obviously don't have the knowledge or skills to produce such a home, which is representative of the general problem we have with your whole post.
You have literally absolutely no idea what you're talking about. Not one single part of your break-down made any sense of had remotely accurate numbers or presumptions.
Accept the fact that you have no idea what you're talking about. Learn and grow as a human being. All this crap you're posting is completely nonsensical--it's ignorant and factually wrong in every detail.
Everyone knows dilithium crystals are the wave of the future. Get with the times.
[I wish I could obey forum rules]