worktop advise. Help

hi. I have just ripped my Kitchen out. floor is back in and unit to. I'm about to fit the worktop sink ect.

issue. the 600mm deep worktop does not fit flush on the wall as there is a pipe that is in the middle of the wall. so there is a wooden batten eitherside that sits across the wall. the old worktop then was glued. fitted to this. hence ripping it all out as the worktop was moving all over the place.

hows best to fit the new worktop to the wall.fit a new batter. how do I then fit the...

worktop advise. Help