I am on a pension too.
Have a look at The Waterside Inn,founded and run by the Roux Brothers.It seems reasonable(and more varied) than Mr Blumenthal,and it has THREE Michelin stars too.
http://www.waterside-...uisine/current_menus/
It's in the same town(Bray) as The Fat Duck,and I believe there is another (only)One Michelin Star eaterie in the town too,aren't they spoilt.Mind you it's a very posh/exclusive area,so they can afford it!
As you think £160 reasonable,gonna treat me?LOL