IndyBeerman
Was a real life Beerman.....
All beer is better on draft, because it isn't pasturized.
Do you have a reference for that? Because I can think of about 100 beers off the top of my head that aren't pasturized in any form of packaging, more if I actually put any thought into it.
Not all beer is pasturized in the bottle/can.
There are several import keg brands that are pasteurized and don't require refrigeration, and you are correct several that are NOT in the bottle/can.
While I am not trying to refute what you are saying entirely, because well, your name is IndyBeerman, and I am going to go ahead and make the assumtion that you work in the beer industry, or just like beer a LOT, or maybe both.
But he won't necessarily need to go out and purchase a cleaning kit. At the Home Bar level a simple squeeze bottle with some PBW or similar beer line wash in it will do the trick of removing any beer stone or similar build up. And some Starsan if you want to sanitize the lines before you hook them back up.
He shouldn't need to worry about a build up of yeast if he is going with any of the "Big 3's" lines of beer, as all but their wheats are filtered, so there should be no yeast in there.
I have had a kegerator for about 9 years now and been brewing beer for just about the same amount of time. You are going to need to worry more about the cleanliness of your faucets then the line itself.
I would recomend going with the forward sealing Perlick faucets, as they have a tendency to not stick as much as the rear sealing micromatics and the like. And they look a whole lot nicer.
Linky's:
Perlicks
Standard Rear Sealing
While I don't drink, and I did'nt sleep at a Holiday Inn last night, I have been delivering beer for 25 years, 7 of those years was draft beer delivery. Granted it was Anhuser-Busch brands, but bacteria, molds, yeast, and beer stone can and will happen. Trust me, break open a Perlick faucet that has not been cleaned for a while and you'll see first hand. It's plain nasty.
Along with using a cleaning kit like this:
Beer Line Cleaning - Deluxe Kit
It will maintain the needed clean lines for great tasting non-foaming beer.
Also below is a link to a complete kit minus the cleaning kit that will convert a refrigerator to your own personal kegerator, the only thing it is missing is a drip tray and I have a link below it.
Value - Door Kegerator Conversion Kit
Beer Drip Tray - 6"x 4" Stainless Steel for Refrigerator