My machine shop bill was £150
And that was for a bore to 86.5mm, blocked decked with oil pump attched, head skimmed aswell.
Also crank was given a quick polish too.
And this is from a big machineshop who do alot of engine building up my neck of the woods.
Maybe me having used him for years is a reflection on the price.
But for a re bore i would say £90 and a headskimmed no more than £30
I personally think your getting your pants pulled down buddy.