I have a similar approach (see
message #24 in this thread), because I've never been very good at selling/buying/geotizing, so I agree with you: buy wise, buy little, use as much as you can.
The only thing, with all due respect, I don't really understand what's so funny is about converting to an EV. One of the reasons I bought an electric bike is that the roads here are incredibly steep and the elevation gains to overcome are significant even to get to work (7 minutes one way, double that on the way back, with the ebike in turbo!) but I wanted to minimize my fuel consumption.
I am an astronomer but I have been working on climate science for a long period of my life and have known for a long time that if it is true that we are emptying an ocean with a teaspoon, we are rapidly moving toward the ultimate catastrophy. And ebikes are one of the most efficient and intelligent solutions right now to reduce our transportation carbon footprint in cases like mine..
Any action that delays the catastrophe, especially for the next generation (e.g. OUR children and grandchildren), is better than nothing, and maybe a solution is found in the meantime.