I have a 60L give or take ice box built in to our Seaway 25, it's really well insulated and does a fantastic job, usually I freeze 1.2L plastic bottles and they will last till a week if the lid is judiciously opened and closed with some frozen milk and meats. We've just had a few weeks onboard interstate and have been buying ice which is a pain dealing with the water, it gets in everything no matter how well it's sealed. So I'm after an upgrade.

The solution is to get one of the plug n play 12v compressor systems. Like this
bla.com.au/index.php?_route_=products/refrigeration/refrigeration-comp-plate-kit

The alternative which is much cheaper is to completely cut n shunt the interior to fit in a normal rectangle Engel or whatever.

Has anyone done the conversion themselves?
There doesn't seem to be anywhere that actually stocks the kits? Resellers seem to be the norm or online Arnold's and a couple of dodgy looking sites.

Any heads up or recommendations would be much appreciated.

Cheers Sam.