I have mine hinged on top and bottom of collar....again I highly recommend this. I used the freezer hinges for collar bottom and just some regular door hinges for collar top . Your point about not being able to open the collar without 8 inches clearance is exactly why you really want a wheeled platform. The wheels platform doubles as a shelf for the co2 bottle to rest on and I just used 2' of heat duty Velcro as a strap to hold it against the back of Keezer.....brew on!
Nothing saying you need to have the taps on the opposite side of the hinges...
That said, who wants to look at hinges all day? Just a quick insomnia fueled thought.
I teach....problem solving and thinking outside the box. One of THE hardest things for people to do is look at their assumptions and then question them. I'm fairly good at it, but the above just tickles my fancy.
The two outside-the-box ideas above are hinging BOTH the collar and the top, and having the hinges on the same side as the taps. Brilliant thinking.
I didn't use my usual method of parsing problems like this, and I suppose it's because it's about my hobby, not something....important. Or so I thought. I'm trying to teach myself to do it all the time, but it's not an easy mindset.
The key here is something like this: in the first case, it's in assuming the hinges have to go on the lid or the collar, and that's singular--one or the other. I need to train myself that whenever I have a "one or the other" situation I ask myself, "why not both?"
The other is with the hinges in the back. I teach that one should look at each element of a proposed solution and reverse, increase, decrease, or remove the elements and see what you've got. In this case, with the statement "The hinges are in the back" obviously it should be broken down as in "the opposite of back is front," "do I really need hinges?" and even so much as "do I even need to use the top?"
I'd already considered just making a collar w/ an insulated top instead of the freezer lid.
You two made my day. Not just because of the keezer ideas, but because of the thinking.