If it was my house I’d stay there and do some work on it over time, you could add a lot of value to the house by doing the following alone (obviously would need doing over time if money is tight but this is what I’d want to do):
Dismantle the conservatory and have french windows going out to the garden instead.
Remove the 60s style brick fireplace, it’s not as big a job as it sounds and could be a DIY job, knock the bricks out which would leave you with the old original space for the fireplace, look on eBay for a similar sized old cast iron fireplace (similar to your lovely bedroom ones), it may or may not need a surround but they are not too expensive.
Remove the pebble dash from at least the front of the house, the back would be more difficult to remove as you’d need scaffolding but a man with a ladder and chisel should be able to get it off the front. Some pebbledash can come off really easily depending on the material used (not so easy with concrete based render) a patch test will give you an idea of how stuck it is to the bricks. Such a shame that so many buildings were ruined by this in the 60s/70s but it can be fixed. You are lucky that they didn’t take out the bay window at the same time, as was fashion at the time.
Re-tile the kitchen with some more up to date tiles, again this could be a DIY job and not as hard or expensive as it sounds.
The layout upstairs is a bigger problem, I’d make the bathroom smaller and box room bigger but that was obviously cost a lot
The answer isn’t always moving, unless you hate the neighbours/area.