What to do with failing Hotpoint and Zanussi?

Hi all, SWMBO and I moved in together last year and we have two refrigerating appliances both with issues.

One is a Hotpoint larder fridge RLA54P which I think is about 8 years old, which is no longer getting cold enough (both according to the ‘OK’ internal indicator and according to SWMBO’s hands-round-the-milk-carton test) unless you put it on max and keep the door shut. Also the rather useful big bottle shelf in the door broke a little while ago. However it is in reasonable condition otherwise and appears to be sealing properly etc. I was feeling it is simply getting too old, but I have since read around and concluded that it might be repairable with a new thermostat for around £13, plus a new bottle shelf is about £19.

We also have a small Zanussi fridge freezer with quite small freezer compartment above middling fridge (can’t remember model but will check later if anyone is interested), only circa 4 years old but has a partially (i.e. not all the way through yet) split seal on the fridge door and some surface rust on the fridge door bottom. It appears to be keeping correct temperature at the moment, but might be struggling slightly as is turned up to a fairly high setting. I was shocked to discover that my plan to buy a new door seal and touch up the paint on the door is not feasible as the seal is integral with the door and a complete door is the only solution at around £105. To my mind it is not worth spending that much on, but not sure if we should just keep going with it until it fails more obviously as maybe it is already running too inefficiently???

I think the Hotpoint may be worth repairing for the meantime but that leaves us without a freezer, we only need a small freezer (actually we could with a tad more freezer space than we have now) but cannot do without one entirely so maybe we could buy a cheap small freezer, around £130, then buy a good brand big fridge freezer when the Hotpoint gives up the ghost? Alternatively maybe we could buy a good small freezer now and then a good larder fridge when the Hotpoint fails, hmm…. ideally I would go for the first option as I think a combined fridge freezer is the more economic option both to buy and run, but it would have to be big in the fridge area and smaller in the freezer area, about 70/30 split.