Here's my 2p-worth:
For the high mileage you do IME AP1 would make a big difference to your own personal wear-and-tear. From memory it was a £1,500 option back then, so probably worth "nothing" secondhand ...
Hmmm ... that big a deal? I drove a demonstrator with Air and was not impressed enough for must-have.
You definitely don't want them ... sorry! ... you need max range. Much more expensive on tires too, and easily "bent" on potholes etc.
Are they Standard on the "P" model? P-model is going to be tight for range for you too
Red-hammerite perhaps?
I've seen aftermarket ones
Bigger battery will help you there - so bigger battery in standard form will come close to matching P-Insane 0-60 in smaller battery - and the standard form, bigger-battery,model will have better range too.