Fitter in Leicester wanted

[Sammy]

I am after some help and advice on removing / cutting existing wooden worktop and replace with granite. I have tried to remove the bolts underneath but, it's not moving from the L shaped joint (to other wooden worktop) 


Would it be possible to cut the wooden worktop in situ and partially replace with granite around the sink area?

I have attached pics of what needs to be achieved. We already have some quotes for the granite but, need help and expertise with the removal or cutting of the timber worktop? 

Appreciate any help with either part of the job or the whole job (ie including the fitting of granite as well) ?