Gday Bribie,
I have had good experiences with second hand chest freezers, and recently I bought a brand new factory second chest freezer for $400 that can fit 6 kegs in it without any modifications. The only thing wrong with it was a bashed in corner at the bottom due to someone dropping it. I bashed it back into shape and it's perfect.
That was a 275L one. With chest freezers there are a range of sizes and you can pretty much get one exactly like what you want if you look hard enough. For example my one comes in the next size up at 320L and the only dimension difference is the width. I reckon it'd hold 8 on the floor. The one down from me is 215L and holds 4 kegs on the floor. Again the only difference is the width.
Just thought I'd put that out there because I don't think what you said is true.
But that said, In hind site I should have just got a kegmate like you did. I find it hard to have more than 3 kegs going at once, a kegerator would have been FAR less money and effort than what I'm trying to achieve with building a bar!
I found a brand new 500 litre Fischer & Paykel chest freezer for $450. When the recommended retail cost at the time was $1350. There was also a 700 litre going for the same price. The dealer is in Brisbane and deals exclusively with this brand, they all have minor damage dents ECT and come with full factory warranty. But as Bribie says you have to modify them and that negates waranty but you would have to very un lucky to have a problem.
Point taken, I was only looking at the perfect ones ex BI-Rite and other stores that I can access locally.
Now the thing about natural carbing is that, sure you can treat the keg like a huge bottle and put in some priming sugar (at half the rate of bottling - there are threads on this). I have done this but, because the pickup tube sticks right down into a little dip at the bottom of the keg, if you carb by priming the keg, the first few pints are going to suck up heaps of yeast that has settled down into the 'well' after the priming. Once you get beyond that stage then it's good. Of course at some point the natural gas runs out and you have to apply BOC $$$$
Swings and roundabouts. I wouldn't use keg priming for a fine lager but no problems with a Coopers Clone or an English Bitter.