Hey Mike,
Your in the wrong forum, as this for MK3 and you have the MK2 🙂
But to answer the question £95 is good, when i had the IS250 i replaced mines with BOSCH S4 068
https://www.eurocarparts.com/p/bosch-s4-car-battery-068-4-year-guarantee-444770687
Which is currently priced at £118. Im sure i paid around £138 a few years back.
So £95 for battery straight from LPD is good.