Sorry to hear of the medical concerns. Very glad you made it back. I've not suffered as you have described, but I sure know about recovering from a depressed core temperature.
The comment I just wanted to make was that with trying to get up a slope with FWD. If you can'd do it because of loss of traction and you really do want to get up that slope, try reversing up the slope instead. It might still not help, but the traction is then at the rear which will increase the load normal to the road on that axle as you go to apply traction. With FWD it is 'exactly the wrong way around' to get this benefit.
The comment I just wanted to make was that with trying to get up a slope with FWD. If you can'd do it because of loss of traction and you really do want to get up that slope, try reversing up the slope instead. It might still not help, but the traction is then at the rear which will increase the load normal to the road on that axle as you go to apply traction. With FWD it is 'exactly the wrong way around' to get this benefit.