on my previous boat there was no freezer. I installed small 12V unit, portable, the one you would use in car or camper. Installed it in 2003 and was working well in 2020 when I sold a boat. I sailed with it all Med, 2 crossing of Atlantic and 2 seasons in Caribbean. No problem whatsoever. I can not remember the brand but I will try to find tomorrow in my old notes.
#279 Bonne Anse in Portoroz