With the items you removed, you did good. Glad to see you remembered even the 1# here and there add up. I've managed to camp several winter seasons with only one tank, just make sure it is filled before each winter trip. I don't like the idea of running on the truck battery, but then I'm usually camping alone so having a dead battery could mean a very long walk.
Since you increased your capacity by increasing the tire rating, thought you may want to go to the next step in vehicle modifications.
Based on quick checking, the below is what I found. Would have to dig deeper to verify, but the numbers show the option.
(reference website)The ranger rear axle is only rated at 2750 pounds. This is not the tire limits, but the axle design itself and does not matter if it is the 7.5" or 8.8" axle. A lot of off roaders upgrade to the Ford Explorer 8.8" axle which has a 3,200# rating. So a swap would increase the axle rating by 450# and let you put a few things back in.