yes, but detail it as taxable income.
I believe some or all of the installation can also class as tax deductable capital allowances as well, but really if you start going into this territory without being an accountant / certifed financial advisor you're getting into dodgy territory IMO. All you need to do is give them the overall pretax income, it's then up to them to sort out their actual tax situation and apply it to decide if it's worthwhile for them or not.
I believe some or all of the installation can also class as tax deductable capital allowances as well, but really if you start going into this territory without being an accountant / certifed financial advisor you're getting into dodgy territory IMO. All you need to do is give them the overall pretax income, it's then up to them to sort out their actual tax situation and apply it to decide if it's worthwhile for them or not.