http://www.halltvseries.com/lowline-tv-units/

What do I give a friends Brother for cutting down my old TV Unit to make it into a lowline?
My friends brother is cutting down my old TV Unit to make it into a low-line. Obviously I would pay for any materials required and he said a bottle of rum. But what is the going rate? I feel I need to give him a little more than that. If i was going to purchase a new one I would be up for a lot more. What are your ideas?
$15 an hour.