Question....does your dad intend to pay and maintain the licencing for a brew pub in order to legally serve microbrew?
Also, I agree with everyone else. I could put together a temp controlled 1/2 barrel system for closer to $3500-4000, not including the spiffy SS table/stand. Also, if you do intend on turning the restaurant into a brewpub, you probably want more output than a 1/2 barrell system. There is a tiny little brewpub here with inside seating for 12 that brews on a 3 barrel system with three fermentors and 8 bright tanks that can't keep up with the demand for some of their beers.
Some things to think about!