^ do let me noe if u sell them seperatly, i might be interested.
About the mileage, do confirm it from a reliable source first, Then take ur decision. Since i got to know battery only supports the car at speeds of 20 km/h its a turn off for me, Altho once you travel 20-30km, ur average speed isnt more then 20-25km/h (my corolla shows 24 max average speed)
So maybe in that context its great, But please do consult owners before you make your decsion